In sulphur estimation, $2.0 \times 10^{-3} \mathrm{~mol}$ of an organic compound $(\mathrm{X})$ (molar mass $76 \mathrm{~g} \mathrm{~mol}^{-1}$ ) gave 0.4813...

For a first order reaction $\mathrm{A} \rightarrow \mathrm{B}$ $x=$ $\_\_\_\_$ min. (Nearest integer)

An electrochemical cell, consist of the following two redox couples, $\mathrm{M}^{x+}(\mathrm{aq}) / \mathrm{M}(\mathrm{s})\left[\mathrm{E}_{\text {red }}^{\ominus}=+0.15 \mathrm{~V}\right]$ and $...

For the following reaction at $50^{\circ} \mathrm{C}$ and at 2 atm pressure, $$ 2 \mathrm{~N}_2 \mathrm{O}_5(\mathrm{~g}) \mathrm{f} \quad 2 \mathrm{~N}_2...

If 3.365 g of ethanol $(l)$ is burnt completely in a bomb calorimeter at 298.15 K , the heat produced...

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

Among $\mathrm{Fe}^{3+}, \mathrm{Pb}^{2+}, \mathrm{Cu}^{2+}$ and $\mathrm{Mn}^{2+}$, identify the one that gets precipitated out while passing $\mathrm{H}_2 \mathrm{~S}$ in presence of...

A D-aldotetrose on oxidation with concentrated $\mathrm{HNO}_3$ resulted in optically inactive dicarboxylic acid. The structure of the D -aldotetrose is:

The strongest conjugate acid will result from:

The descending order of acidity among the following compounds is: Choose the correct answer from the options given below:

The following structures are

Compound $(\mathrm{X})$ is subjected to the sequence of reactions as shown above. Molar mass of the major product $(\mathrm{Y})$ formed...

Consider the given graph showing variation of reactant concentration with time. Three different reactions were started with identical initial concentration...

Consider $|\mathrm{x}|$ is the difference in oxidation states of Mn in highest manganese fluoride and highest manganese oxide. The ions...

Consider the following molecules/species: The correct order of carbon - oxygen double bond length is :

Consider the metal complexes $\left[\mathrm{Ni}(\mathrm{en})_3\right]^{2+}(\mathrm{A}),\left[\mathrm{NiCl}_4\right]^{2-}(\mathrm{B})$ and $\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_6\right]^{2+}(\mathrm{C})$. Choose the CORRECT option by considering the number of unpaired electrons present in...

Pairs of elements with the same number of electrons in their respective 4 f orbital are [Atomic number. Eu-63, Gd-64,...

The electronegativity of a group 13 element ' $E$ ' is same as that of Ge (on Pauling scale and...