Q JEE MAIN 2026

Given below are two statements :Statement I: $\mathrm{F}_2 \mathrm{O}

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Q JEE MAIN 2026

Given below are two statements :Statement I : The number of compounds among $\mathrm{SO}_2, \mathrm{SO}_3, \mathrm{SF}_4, \mathrm{SF}_6$ and $\mathrm{H}_2 \mathrm{~S}$...

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Q JEE MAIN_2026

Bromine trifluoride autoionizes to form $\mathrm{BrF}_2^{\oplus}$ and $\mathrm{BrF}_4^{!}$. The shapes of the cation and anion are respectively $\_\_\_\_$ and $\_\_\_\_$...

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Q JEE MAIN_2026

The pairs among $$ \mathrm{A}=\left[\mathrm{SO}_3^{2-}, \mathrm{CO}_3^{2-}\right], \mathrm{B}=\left[\mathrm{O}_2^{2-}, \mathrm{F}_2\right], \mathrm{C}=\left[\mathrm{CN}^{-}, \mathrm{CO}\right], \mathrm{D}=\left[\mathrm{NH}_3, \mathrm{H}_3 \mathrm{O}^{+}\right] \text {and } \mathrm{E}=\left[\mathrm{MnO}_4^{2-}, \mathrm{CrO}_4^{2-}\right] $$ that...

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Q JEE MAIN_2026

Given below are two statements : Statement I: Aluminium upon reaction with NaOH forms $\left[\mathrm{Al}(\mathrm{OH})_6\right]^{3-}$ ion. Statement II : The...

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Q JEE MAIN_2026

Consider the following species: $$ \mathrm{BrF}_5, \mathrm{XeF}_5^{-}, \mathrm{BF}_4^{-}, \mathrm{ICl}_4^{-}, \mathrm{XeF}_4, \mathrm{SF}_4, \mathrm{NH}_4^{+}, \mathrm{ClF}_3, \mathrm{XeF}_2, \mathrm{ICl}_2^{-} $$ Number of species having...

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Q JEE MAIN_2026

Which of the following pictorial diagram most correctly represents the $\pi^*$ ( $\pi$ antibonding) molecular orbital between two atoms if...

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Q JEE MAIN_2026

According to Lewis theory, the total number of $\sigma$ bond-pairs and lone pair of electrons around the central atom of...

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Q JEE MAIN_2026

A molecule $(X)$ with following structure under mild acidic condition is hydrolysed to produce $(\mathrm{Y})$ and (Z). Identify the correct...

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Q JEE MAIN_2026

$\mathrm{SF}_4$ is isostructural with: A. $\mathrm{BrF}_4{ }^{!}$ B. $\mathrm{CH}_4$ C. $\mathrm{IF}_4^{\oplus}$ D. $\mathrm{XeF}_4$ E. $\mathrm{XeO}_2 \mathrm{~F}_2$ Choose the correct answer...

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Q JEE Main 2026

Given below are two statements :Statement (I): The correct sequence of bond lengths in the following species is : $$...

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Q JEE MAIN 2026

Given below are two statements: Statement I: The number of species among $\mathrm{BF}_4^{-}, \mathrm{SiF}_4, \mathrm{XeF}_4$ and $\mathrm{SF}_4$, that have unequal...

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Q JEE MAIN_2026_

Match List - I with List - II according to shape. Choose the correct answer from the options given below...

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Q JEE MAIN 2026

Pair of species among the following having same bond order as well as paramagnetic character will be-

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Q JEE MAIN 2026

Among the following, the CORRECT combinations are A. $\mathrm{IF}_3 \rightarrow \mathrm{~T}$-shaped $\left(\mathrm{sp}^3 \mathrm{~d}\right)$ B. $\mathrm{IF}_5 \rightarrow$ Square pyramidal $\left(\mathrm{sp}^3 \mathrm{~d}^2\right)$...

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Q JEE MAIN 2026

Given below are statements about some molecules/ions. Identify the CORRECT statements. A. The dipole moment value of $\mathrm{NF}_3$ is higher...

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Q JEE MAIN 2026

Identify the molecule $(\mathrm{X})$ with maximum number of lone pairs of electrons (obtained using Lewis dot structure) among $...

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Q JEE MAIN 2026

Given below are two statements: Statement I: The correct order in terms of bond dissociation enthalpy is $\mathrm{Cl}_2>\mathrm{Br}_2>\mathrm{F}_2>\mathrm{I}_2$. Statement II:...

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Q JEE MAIN 2026

The correct increasing order of $\mathrm{C}-\mathrm{H}(\mathrm{A}), \mathrm{C}-\mathrm{O}(\mathrm{B}), \mathrm{C}=\mathrm{O}(\mathrm{C})$ and $C \equiv N(D)$ bonds in terms of covalent bond length is:

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Q JEE MAIN 2026

Among $\mathrm{H}_2 \mathrm{~S}, \mathrm{H}_2 \mathrm{O}, \mathrm{NF}_3, \mathrm{NH}_3$ and $\mathrm{CHCl}_3$, identify the molecule $(\mathrm{X})$ with lowest dipole moment value. The number...

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Q JEE MAIN 2020

If $\mathrm{AB}_4$ molecule is a polar molecule, a possible geometry of $A B_4$ is

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Q JEE MAIN 2020

The shape / structure of $\left[\mathrm{XeF}_5\right]^{-}$and $\mathrm{XeO}_3 \mathrm{~F}_2$, respectively, are

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Q JEE MAIN_2019_

During the change of $\mathrm{O}_2$ to $\mathrm{O}_2^{-}$, the incoming electron goes to the orbital:

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Q JEE MAIN 2020

The molecular geometry of SF6 is octahedral. What is the geometry of SF4 (including lone pair(s) of electrons, if any)?

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Q JEE MAIN_2019

The correct order of catenation is:

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Q JEE MAIN 2020

Match the type of interaction in column A with the distance dependence of their interaction energy in column B

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Q JEE MAIN 2019

Excessive release of $\mathrm{CO}_2$ into the atmosphere results in

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Q JEE MAIN 2019

Among the following, the molecule expected to be stabilized by anion formation is $\mathrm{C}_2, \mathrm{O}_2, \mathrm{NO}, \mathrm{F}_2$

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Q JEE MAIN_2019_

The oxoacid of sulphur that does not contain bond between sulphur atoms is :

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Q JEE MAIN 2019

In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?

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Q JEE MAIN 2019

In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?

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Q JEE MAIN 2019

The element that shows greater ability to form $p \pi-p \pi$ multiple bonds, is

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Q JEE MAIN 2019

The number of water molecule(s) not coordinated to copper ion directly in $\mathrm{CuSO}_4 \cdot 5 \mathrm{H}_2 \mathrm{O}$, is

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Q JEE MAIN 2020

Consider the following reaction : $\mathrm{N}_2 \mathrm{O}_4(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}_2(\mathrm{~g}) ; \Delta \mathrm{H}^0=+58 \mathrm{~kJ}$ For each of the following cases...

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Q JEE MAIN 2019

The element that does NOT show catenation is

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Q JEE MAIN 2019

$\mathrm{C}_{60}$ , an allotrope of carbon contains

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Q JEE MAIN 2020

The potential energy curve for the $\mathrm{H}_2$ molecule as a function of internuclear distance is

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Q JEE MAIN 2020

The structure of PCl5 in the solid state is

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Q JEE MAIN 2020

The number of Cl = O bonds in perchloric acid is

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Q JEE MAIN 2019

The amphoteric hydroxide is

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Q JEE MAIN 2020

‘X’ melts at low temperature and is a bad conductor of electricity in both liquid and solid state. X is

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Q JEE MAIN 2020

The acidic, basic and amphoteric oxides, respectively, are

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Q JEE MAIN 2020

If the magnetic moment of a dioxygen species is 1.73 B.M, it may be

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Q JEE MAIN 2020

The number of bonds between sulphur and oxygen atoms in $\mathrm{S}_2 \mathrm{O}_8^{2-}$ and the number of bonds between sulphur and...

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Q JEE MAIN 2020

The predominant intermolecular forces present in ethyl acetate, a liquid, are

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Q JEE-MAIN 2020

The correct statement about probability density (except at infinite distance from nucleus) is

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Q JEE-MAIN 2020

The compound that has the largest H – M – H bond angle (M = N, O, S, C) is

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Q JEE MAIN 2019

The number of pentagons in $\mathrm{C}_{60}$ and trigons (triangles) in white phosphorus, respectively, are:

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Q JEE Main 2019

Two pi and half sigma bonds are present in

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Q JEE MAIN 2020

The intermolecular potential energy for the molecules A, B, C and D given below suggests that :

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Q JEE Main 2019

The type of hybridisation and number of lone pair(s) of electrons of $X e$ in $X e O F_4$, respectively,...

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Q JEE MAIN 2020

The first and second ionisation enthalpies of a metal are 496 and $4560 \mathrm{~kJ} \mathrm{~mol}^{-1}$, respectively. How many moles of...

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Q JEE MAIN 2020

Complexes (ML5) of metals Ni and Fe have ideal square pyramidal and trigonal bipyramidal geometries, respectively. The sum of the...

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Q JEE-MAIN 2020

$6.023 \times 10^{22}$ molecules are present in 10 g of a substance ' x '. The molarity of a solution...

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Q JEE-MAIN 2020

The incorrect statement is

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Q JEE MAIN 2019

The structures of beryllium chloride in the solid state and vapour phase, respectively, are

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Q JEE MAIN 2019

The correct statements among I to III are (I) Valence bond theory cannot explain the color exhibited by transition metal...

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Q JEE MAIN 2019

The amorphous form of silica is

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Q JEE MAIN 2021

The number of species having non–pyramidal shape among the following is

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Q JEE MAIN 2019

Among the following species, the diamagnetic molecule is

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Q JEE MAIN 2020

The dipole moments of $\mathrm{CCl}_4, \mathrm{CHCl}_3$ and $\mathrm{CH}_4$ are in the order :

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Q JEE MAIN 2020

The relative strength of interionic/ intermolecular forces in decreasing order is :

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Q JEE MAIN 2021

$$ \text { According to molecular orbital theory, the number of unpaired electron(s) in } \mathrm{O}_2^{2-} \text { is :...

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Q JEE MAIN 2021

The Born-Haber cycle for KCl is evaluated with the following data: $...

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Q JEE MAIN 2021

These are physical properties of an element (A) Sublimation enthalpy (B) Ionisation enthalpy (C) Hydration enthalpy (D) Electron gain enthalpy...

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Q JEE MAIN 2021

$\mathrm{AB}_3$ is an interhalogen T-shaped molecule. The number of lone pairs of electrons on A is $\_\_\_\_$ (Integer answer)

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Q JEE MAIN 2021

The number of S=O bonds present in sulphurous acid, peroxodisulphuric acid and pyrosulphuric acid, respectively are :

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Q JEE MAIN_2021

The total number of electrons in all bonding molecular orbitals of $\mathrm{O}_2^{2-}$ is $\_\_\_\_$ (Round off to the nearest integer)

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Q JEE MAIN 2021

In polythionic acid, $\mathrm{H}_2 \mathrm{~S}_{\mathrm{x}} \mathrm{O}_6(\mathrm{x}=3$ to 5$)$ the oxidation state(s) of sulphur is/are :

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Q JEE MAIN 2021`

The spin-only magnetic moment value of $\mathrm{B}_2^{\prime}$ species is $\_\_\_\_$ $\times 10^{-2} \mathrm{BM}$. (Nearest integer) $[$ Given: $\sqrt{3}=1.73]$

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Q JEE-MAIN 2021

The bond order and magnetic behaviour of $\mathrm{O}_2^{-}$ion are, respectively :

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Q _JEE MAIN_2021_

Number of Cl = O bonds in chlorous acid, chloric acid and perchloric acid respectively are:

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Q JEE-MAIN 2021

The interaction energy of London forces between two particles is proportional to $\mathrm{r}^{\mathrm{x}}$, where r is the distance between the...

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Q JEE-MAIN 2021

The spin-only magnetic moment value of $\mathrm{B}_2^{+}$species is $\_\_\_\_$ $\times 10^{-2}$ BM. (Nearest integer) $[$ Given: $\sqrt{3}=1.73]$

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Q JEE MAIN 2021

In which one of the following molecules strongest back donation of an electron pair from halide to boron is expected?

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Q JEE MAIN 2021

Match List–I with List–II : Choose the most appropriate answer from the options given below :

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Q JEE-MAIN 2021

The oxide without nitrogen-nitrogen bond is :

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Q JEE MAIN 2021

The number of hydrogen bonded water molecule(s) associated with stoichiometry $\mathrm{CuSO}_4 .5 \mathrm{H}_2 \mathrm{O}$ is $\_\_\_\_$ .

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Q JEE MAIN 2021

The number of lone pairs of electrons on the central I atom in $\mathrm{I}_3^{-}$is $\_\_\_\_$ .

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Q JEE MAIN 2021

Identify the species having one $\pi$-bond and maximum number of canonical forms from the following :

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Q JEE MAIN_2021

Given below are two statements: Statement I: $\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-},\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$ and $\left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}$ are $d^2 \mathrm{sp}^3$ hybridised. Statement Il: $\left[\mathrm{MnCl}_6\right]^{3-}$ and $\left[\mathrm{FeF}_6\right]^{3-}$...

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Q JEE MAIN 2021

The set in which compounds have different nature is :

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Q JEE MAIN 2021

Match List-I with List-II : Choose the correct answer from the options given below :

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Q JEE MAIN 2021

In the following the correct bond order sequence is:

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Q JEE MAIN 2021

The hybridisations of the atomic orbitals of nitrogen in $\mathrm{NO}_2^{-}, \mathrm{NO}_2^{+}$andN $\mathrm{NH}_4^{+}$respectively are.

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Q JEE MAIN 2021

Which one of the following species doesn't have a magnetic moment of 1.73 BM, (spin only value) ?

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Q JEE MAIN 2021

The difference between bond orders of CO and $\mathrm{NO}^{\oplus}$ is $\frac{\mathrm{x}}{2}$ where $\mathrm{x}=$ $\_\_\_\_$ . (Round off to the Nearest...

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Q JEE MAIN 2021

In gaseous triethyl amine the "–C–N–C–" bond angle is ________ degree.

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Q JEE MAIN 2021

The oxidation states of ' $\mathrm{P}^{\prime}$ in $\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_7, \mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_5$ and $\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_6$, respectively, are :

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Q JEE MAIN 2019

Among the following molecules/ions, $$ \mathrm{C}_2^{2-}, \mathrm{N}_2^{2-}, \mathrm{O}_2^{2-}, \mathrm{O}_2 $$ Which one is diamagnetic and has the shortest bond length?

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Q JEE MAIN 2019

The correct statement about $\mathrm{ICl}_5$ and $\mathrm{ICl}_4^{-}$is :

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Q JEE MAIN 2021

The number of species below that have two lone pairs of electrons in their central atom is $\_\_\_\_$ (Round off...

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Q JEE-MAIN 2021

Amongst the following, the linear species is

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Q JEE MAIN 2021

The secondary valency and the number of hydrogen bonded water molecule(s) in $\mathrm{CuSO}_4 .5 \mathrm{H}_2 \mathrm{O}$, respectively, are :

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Q JEE-MAIN 2021

The set that represents the pair of neutral oxides of nitrogen is :

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Q JEE MAIN 2021

The oxidation states of nitrogen in NO, NO2, N2O and $\mathrm{NO}_3^{-}$are in the order of :

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Q JEE Main 2019

According to molecular orbital theory, which of the following is true with respect to $\mathrm{Li}_2{ }^{+}$and $\mathrm{Li}_2{ }^{-}$?

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Q JEE-Main-2021_

The correct order of conductivity of ions in water is:

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Q JEE MAIN 2021

The correct shape and I-I-I bond angles respectively in $\mathrm{I}_3^{-}$ion are :-

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Q JEE-Main-2021_

Which of the following compound CANNOT act as a Lewis base?

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Q JEE-Main-2021_

A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of...

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Q JEE MAIN 2021

AX is a covalent diatomic molecule where A and X are second row elements of periodic table. Based on Molecular...

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Q JEE MAIN 2021

The correct order of bond dissociation enthalpy of halogens is :

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Q JEE MAIN 2021

Which among the following species has unequal bond lengths ?

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Q JEE MAIN 2021

Which pair of oxides is acidic in nature?

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Q JEE MAIN 2021

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R...

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Q JEE MAIN 2021

Match List-I with List-II :

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Q JEE MAIN 2022

Number of amphoteric compound among the following is __________

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Q JEE MAIN 2021

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R....

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Q JEE MAIN 2021

Which of the following are isostructural pairs ? $\mathrm{SO}_4^{2-}$ and $\mathrm{CrO}_4^{2-}$ $\mathrm{SiCl}_4$ and $\mathrm{TiCl}_4$ $\mathrm{NH}_3$ and $\mathrm{NO}_3^{-}$ $\mathrm{BCl}_3$ and $\mathrm{BrCl}_3$

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Q JEE MAIN 2021

Among the following, the number of halide(s) which is/are inert to hydrolysis is _______.

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Q JEE MAIN 2021

According to molecular theory, the species among the following that does not exist is:

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Q JEE MAIN 2022

According to MO theory, number of species/ions from the following having identical bond order is _____:$\mathrm{CN}^{-}, \mathrm{NO}^{+}, \mathrm{O}_2, \mathrm{O}_2^{+}, \mathrm{O}_2^{2+}$

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Q JEE MAIN 2022

Amongst the following the number of oxide(s) which are paramagnetic in nature is $...

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Q JEE MAIN 2022

Consider the following sulphure based oxoacids. $$ \mathrm{H}_2 \mathrm{SO}_3, \mathrm{H}_2 \mathrm{SO}_4, \mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_8 \text { and } \mathrm{H}_2 \mathrm{~S}_2...

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Q JEE MAIN 2022

The sum of number of lone pairs of electrons present on the central atoms of $\mathrm{XeO}_3, \mathrm{XeOF}_4$ and $\mathrm{XeF}_6$ is

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Q JEE MAIN 2022

The number of interhalogens from the following having square pyramidal structure is : $$ \mathrm{ClF}_3, \mathrm{IF}_7, \mathrm{BrF}_5, \mathrm{BrF}_3, \mathrm{I}_2 \mathrm{Cl}_6,...

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Q JEE MAIN 2022

The number of paramagnetic species among the following is $\_\_\_\_$ . $\mathrm{B}_2, \mathrm{Li}_2, \mathrm{C}_2, \mathrm{C}_2^{-}, \mathrm{O}_2^{2-}, \mathrm{O}_2^{+} ;$and $\mathrm{He}_2^{+}$

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Q JEE MAIN 2022

Consider, $\mathrm{PF}_5, \mathrm{BrF}_5, \mathrm{PCl}_3, \mathrm{SF}_6,\left[\mathrm{ICl}_4\right]^{-}, \mathrm{ClF}_3$ and $\mathrm{IF}_5$. Amongst the above molecule(s)/ion(s), the number of molecule(s)/ion(s) having $\mathrm{sp}^3 \mathrm{~d}^2$ hybridisation...

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Q JEE MAIN 2022

Given below are two statements. Statement I : $\mathrm{O}_{2, a, \mathrm{Cu}^{2+}}$ and $\mathrm{Fe}^{3+}$ are weakly attracted by magnetic field and...

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Q JEE MAIN 2022

The number of molecule(s) or ion(s) from the following having non-planar structure is_______.$...

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Q JEE MAIN 2022

Match List I with List II : Choose the correct answer from the options given below

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Q JEE MAIN 2022

Arrange the following in increasing order of their covalent character. (A) $\mathrm{CaF}_2$ (B) $\mathrm{CaCl}_2$ (C) $\mathrm{CaBr}_2$ (D) $\mathrm{Cal}_2$ Choose the...

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Q JEE-Main 2022

Among the following species $$ \mathrm{N}_2, \mathrm{~N}_2^{+}, \mathrm{N}_2^{-}, \mathrm{N}_2^{2-}, \mathrm{O}_2, \mathrm{O}_2^{+}, \mathrm{O}_2^{-}, \mathrm{O}_2^{2-} $$ the number of species showing diamagnetism...

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Q JEE MAIN 2022

Number of lone pairs of electrons in the central atom of $\mathrm{SCl}_2, \mathrm{O}_3, \mathrm{ClF}_3$ and $\mathrm{SF}_6$, respectively, are in

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Q JEE MAIN 2022

Which of the following pair of molecules contain odd electron molecule and an expanded octet molecule?

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Q JEE MAIN 2022

Given below are two statements : One is labeled as Assertion A and the other is labeled as Reason R...

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Q JEE MAIN 2022

Match List - I with List - II. Choose the correct answer from the options given below :

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Q JEE MAIN 2022

Amongst $\mathrm{SF}_4, \mathrm{XeF}_4, \mathrm{CF}_4$ and $\mathrm{H}_2 \mathrm{O}$, the number of species with two lone pairs of electrons $\_\_\_\_$

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Q JEE MAIN 2022

Number of lone pair (s) of electrons on central atom and the shape of $\mathrm{BrF}_3$ molecule respectively, are.

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Q JEE MAIN 2022

Among the following basic oxide is :

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Q JEE MAIN 2022

Match List-I with List-II. Choose the correct answer from the options given below :

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Q JEE MAIN 2022

In the structure of $\mathrm{SF}_4$ , the lone pair of electrons on S is in.

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Q JEE-MAIN 2022

The correct order of increasing intermolecular hydrogen bond strength is

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Q JEE MAIN 2022

Identify the incorrect statement for $\mathrm{PCl}_5$ from the following.

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Q JEE MAIN 2022

Amongst $\mathrm{BeF}_2, \mathrm{BF}_3, \mathrm{H}_2 \mathrm{O}, \mathrm{NH}_3, \mathrm{CCl}_4$ and HCl , the number of molecules with non-zero net dipole moment is...

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Q JEE-Main 2022

The correct order of bond orders of $\mathrm{C}_2^{2-}, \mathrm{N}_2^{2-}$ and $\mathrm{O}_2^{2-}$ is, respeptively.

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Q JEE MAIN 2022

The hybridization of P exhibited in $\mathrm{PF}_5$ is $\mathrm{sp}^x \mathrm{~d}^y$. The value of y is __________.

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Q JEE MAIN 2022

Two elements A and B which form 0.15 moles of A2B and AB3 type compounds. If both A2B and AB3...

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Q JEE MAIN 2022

Arrange the following in the decreasing order of their covalent character : (A) LiCl (B) NaCl (C) KCl (D) CsCl...

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Q JEE MAIN 2022

Based upon VSEPR theory, match the shape (geometry) of the molecules in List-I with the molecules in List-II and select...

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Q JEE MAIN 2024

Select the compound from the following that will show intramolecular hydrogen bonding.

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Q JEE MAIN 2022

Consider the ions/molecule For increasing bond order the correct option is :

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Q JEE MAIN 2024

Which of the following is least ionic ?

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Q JEE MAIN 2022

Bonding in which of the following diatomic molecules(s) become(s) stronger, on the basis of MO Theory, by removal of an...

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Q JEE MAIN 2024

$\mathrm{A}_{(\mathrm{g})} \rightleftharpoons \mathrm{B}_{(\mathrm{g})}+\frac{\mathrm{C}}{2}(\mathrm{~g})$ The correct relationship between $K_P, \alpha$ and equilibrium pressure $P$ is

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Q JEE MAIN 2024

Given below are two statements: Statement (I): A $\pi$ bonding MO has lower electron density above and below the inter-nuclear...

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Q JEE MAIN 2024

The total number of molecules with zero dipole moment among $\mathrm{CH}_4, \mathrm{BF}_3, \mathrm{H}_2 \mathrm{O}, \mathrm{HF}, \mathrm{NH}_3, \mathrm{CO}_2$ and $\mathrm{SO}_2$ is

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Q JEE MAIN 2024

Given below are two statements: Statement-I: Since fluorine is more electronegative than nitrogen, the net dipole moment of $\mathrm{NF}_3$ is...

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The total number of anti bonding molecular orbitals, formed from 2s and 2p atomic orbitals in a diatomic molecule is

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The molecule/ion with square pyramidal shape is:

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Q JEE MIAN 2024

The number of non-polar molecules from the following is $\mathrm{HF}, \mathrm{H}_2 \mathrm{O}, \mathrm{SO}_2, \mathrm{H}_2, \mathrm{CO}_2, \mathrm{CH}_4, \mathrm{NH}_3, \mathrm{HCl}, \mathrm{CHCl}_3, \mathrm{BF}_3$

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Given below are two statements : Statement (I) : For $\mathrm{ClF}_3$, all three possible structures may be drawn as follows....

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Q JEE MAIN 223

In $\mathrm{SO}_2, \mathrm{NO}_2^{-}$and $\mathrm{N}_3^{-}$the hybridizations at the central atom are respectively:

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Q JEE MAIN 2025

Given below are two statements: Statement I : $\mathrm{H}_2 \mathrm{Se}$ is more acidic than $\mathrm{H}_2 \mathrm{Te}$ Statement II : $\mathrm{H}_2$...

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Q JEE MAIN 2023

The maximum number of lone pairs of electrons on the central atom from the following species is $\_\_\_\_$ $...

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Q JEE MAIN 2023

The number of species from the following carrying a single lone pair on central atom Xenon is ____ $...

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Q JEE MAIN 2023

Which of the following complexes will exhibit maximum attraction to an applied magnetic field?

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Q JEE MAIN 2023

Given below are two statements: Statement I: SO2 and H2¬O both possess V-shaped structure. Statement II: The bond angle of...

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Q JEE MAIN 2023

Which one of the following pairs is an example of polar molecular solids?

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Q JEE MAIN 2023

The number of molecules from the following which contain only two lone pair of electrons is $\_\_\_\_$ . $...

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Q JEE MAIN 2023

Which hydride among the following is less stable?

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Amongst the following, the number of species having the linear shape is ____. $...

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Q JEE MAIN 2023

The bond order and magnetic property of acetylide ion are same as that of

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Q JEE MAIN 2023

Total number of acidic oxides among $\mathrm{N}_2 \mathrm{O}_3, \mathrm{NO}_2, \mathrm{~N}_2 \mathrm{O}, \mathrm{Cl}_2 \mathrm{O}_7, \mathrm{SO}_2, \mathrm{CO}, \mathrm{CaO}, \mathrm{Na}_2 \mathrm{O}$ and NO...

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Q JEE MAIN 2023

Boric acid in solid, whereas $\mathrm{BF}_3$ is gas at room temperature because of

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Q JEE MAIN 2023

Bond dissociation energy of $\mathrm{E}-\mathrm{H}$ bond of the " $\mathrm{H}_2 \mathrm{E}$ " hydrides of group 16 elements (given below), follows...

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Q JEE MAIN 2023

Chlorides of which metal are soluble in organic solvents:

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Statement 1 : Dipole moment is a vector quantity and by convention it is depicted by a small arrow with...

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Which of the following represents the correct order of metallic character of the given elements ?

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What is the number of unpaired electron(s) in the highest occupied molecular orbital of the following species : $...

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Q JEE MAIN 2023

The sum of lone pairs present on the central atom of the interhalogen $\mathrm{IF}_5$ and $\mathrm{IF}_7$ is ______.

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Q JEE MAIN 2023

Match List-I with List-II: [JEE (Main) 11-4-23_S1] [CB_E] Ea$...

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Q JEE MAIN 2023

Consider the following statements: (A) NF3 molecule has a trigonal planar structure. (B) Bond length of N2 is shorter than...

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The number of bent-shaped molecule/s from the following is ______. $\mathrm{N}_3^{-}, \mathrm{NO}_2^{-}, \mathrm{I}_3^{-}, \mathrm{O}_3, \mathrm{SO}_2$

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Q JEE MAIN 2023

The number of following factors which affect the percent covalent character of the ionic bond is____

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Q JEE MAIN 2023

oxidation sate of phosphorus in hypophosphoric acid is + ________.

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Decreasing order of the hydrogen bonding in following forms of water is correctly represented by A. Liquid water B. Ice...

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Q JEE MAIN 2023

Match List I with List IIChoose the correct answer from the options given below :

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Q JEE MAIN 2023

The number of molecules or ions from the following, which do not have odd number of electrons are ______.

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Q JEE MAIN 2023

Order of Covalent bond;

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Q JEE MAIN 2023

Resonance in carbonate ion $\left(\mathrm{CO}_3^{2-}\right)$ is Which of the following is true?

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Q JEE MAIN 2023

The correct order of basicity of oxides of vanadium is

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Q JEE MAIN 2023

The magnetic behaviour of Li2O, Na2O2 and KO2, respectively, are

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Q JEE MAIN 2023

Decreasing order of the hydrogen bonding in following forms of water is correctly represented by A. Liquid water B. Ice...

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Q JEE MAIN 2023

Order of Covalent bond;

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Q JEE MAIN 2024

The number of molecules/ion/s having trigonal bipyramidal shape is PF_5,BrF_5,PCl_5,[PtCl_4 ]^(2-),BF_3,Fe(CO)_5

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Q JEE MAIN 2024

The total number of species from the following in which one unpaired electron is present, is N_2,O_2,C_2^-,O_2^-,O_2^(2-),H_2^+,CN^-,He_2^+

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Q JEE MAIN 2024

Arrange the bonds in order of increasing ionic character in the molecules. LiF,K_2 O,N_2,SO_2 and CIF_3.

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Number of molecules/species from the following having one unpaired electron is $\mathrm{O}_2, \mathrm{O}_2^{-1}, \mathrm{NO}, \mathrm{CN}^{-1}, \mathrm{O}_2^{2-}$

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Q JEE MAIN 2024

In which one of the following pairs the central atoms exhibit $\mathrm{sp}^2$ hybridization?

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In case of isoelectronic species the size of F^-,Ne and Na^+is affected by:

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Number of molecules from the following which are exceptions to octet rule is $...

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In the lewis dot structure for NO_2^-, total number of valence electrons around nitrogen is

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Number of molecules/ions from the following in which the central atom is involved in $\mathrm{sp}^3$ hybridization is $...

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Q JEEE MAINS 2024

Which one of the following molecules has maximum dipole moment?

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Q JEE MAIN 2024

Match List I and with List II Choose the correct answer from the option below :

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Match List I with List II : Choose the correct answer from the options given below :

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Match List I with List II : Choose the correct answer from the options given below :

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Match List I with List II : Choose the correct answer from the options given below :

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The number of species from the following in which the central atom uses sp^3 hybrid orbitals in its bonding is...

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The number of species from the following which are paramagnetic and with bond order equal to one is $...

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Q JEE MAIN 2024

The total number of molecular orbitals formed from 2s and 2p atomic orbitals of a diatomic molecule

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Number of compounds with one lone pair of electrons on central atom amongst following is O_3,H_2 O,SF_4,ClF_3,NH_3,BrF_5,XeF_4

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Q JEE MAIN 2024

The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitals A. have...

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Q JEE MAIN 2024

Match List-I with List-II

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Q JEE MAIN 2024

Aluminium chloride in acidified aqueous solution forms an ion having geometry

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Q JEE MAIN 2025

In 3,3-dimethylhex-1-en-4-yne, there are $\_\_\_\_$ $s p^{3}$, $\_\_\_\_$ $s p^{2}$ and $\_\_\_\_$ sp hybridised carbon atoms respectively.

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Which among the following molecules is (a) involved in $s p^{3} d$ hybridization, (b) has different bond lengths and (c)...

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Q JEE MAIN 2024

Sum of bond order of CO and $NO^+$ is

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Total number of non bonded electrons present in $\mathrm{NO}_{2}{ }^{-}$ ion based on Lewis theory is $\_\_\_\_$ .

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Q JEE MAIN 2025

Match the LIST-I with LIST-I Choose the correct answer from the options given below:

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Q JEE MAIN 2025

Given below are two statements: Statement I: Nitrogen forms oxides with +1 to +5 oxidation states due to the formation...

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Q JEE MAIN 2025

Which of the following molecule(s) show/s paramagnetic behavior? A. ${{\rm{O}}_2}$ B. ${{\rm{N}}_2}$ C. ${{\rm{F}}_2}$ D. ${{\rm{S}}_2}$ E. ${\rm{C}}{{\rm{l}}_2}$ Choose the...

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Q JEE MAIN 2025

Identify the inorganic sulphides that are yellow in colour :[0pt] [JEE MAIN\_280125\_S2][Chemical bonding] [T-16][M0derate] (A) $\left(\mathrm{NH}_{4}\right)_{2} \mathrm{~S}$ (B) PbS (C)...

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Given below are two statements :[0pt] tatement (I): Experimentally determined oxygen-oxygen bond lengths in the $\mathrm{O}_{3}$ are found to be...

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Q JEE MAIN 2025

Among $S{O_2},N{F_3},N{H_3},Xe{F_2},Cl{F_3}$ and $S{F_4}$, the hybridization of the molecule with nonzero dipole moment and highest number of lone-pairs of electrons...

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Q JEE MAIN 2025

A molecule with the formula $A{X_4}Y$ has all it's elements from p-block. Element A is rarest, monoatomic, non-radioactive from its...

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Q JEE MAIN 2025

Consider ' n ' is the number of lone pair of electrons present in the equatorial position of the most...

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Q JEE MAIN 2025

The molecules having square pyramidal geometry are

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Q JEE MAIN 2025

Which of the following linear combination of atomic orbitals will lead to formation of molecular orbitals in homonuclear diatomic molecules...

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Q JEE MAIN 2025

Which of the following statement is true with respect to ${{\rm{H}}_2}{\rm{O}},{\rm{N}}{{\rm{H}}_3}$ and ${\rm{C}}{{\rm{H}}_4}$ ? A. The central atoms of all...

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Q JEE MAIN 2025

Match the LIST-I with LIST-II

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Q JEE MAIN 2025

The incorrect statement among the following is:

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Q JEE MAIN 2025

\begin{aligned} &\text { Arrange the following compounds in increasing order of their dipole moment . }\\ &\mathrm{HBr}, \mathrm{H}_2 \mathrm{~S}, \mathrm{NF}_3...

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Q JEE MAIN 2025

The number of molecules/ions that show linear geometry among the following is ${\rm{S}}{{\rm{O}}_2},{\rm{BeC}}{{\rm{l}}_2},{\rm{C}}{{\rm{O}}_2},\;{\rm{N}}_3^ - ,{\rm{N}}{{\rm{O}}_2},\;{{\rm{F}}_2}{\rm{O}},{\rm{Xe}}{{\rm{F}}_2},{\rm{NO}}_2^ + ,{\rm{I}}_3^ - ,{{\rm{O}}_3}$

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