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2023 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2023
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Sodium is about 30...
JEE Main Chemistry Easy
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Q JEE MAIN 2023
The difference in the oxidation state of Xe between the oxidised product of Xe formed on complete hydrolysis of $\mathrm{XeF}_4$ and $\mathrm{XeF}_4$ is $\_\_\_\_$ .
JEE Main Chemistry Medium
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Q JEE MAIN 2023
JEE Main Chemistry Medium
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Q JEE MAIN 2023
In Hall – Heroult process, the following is used for reducing $\mathrm{Al}_2 \mathrm{O}_3$ :-
JEE Main Chemistry Easy
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Q JEE MAIN 2023
The number of molecules from the following which contain only two lone pair of electrons is $\_\_\_\_$ . $...
JEE Main Chemistry Easy
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Q JEE MAIN 2023
Better method for preparation of BeF2, among the following is:
(1) $\left(\mathrm{NH}_4\right)_2 \mathrm{BeF}_4 \xrightarrow{\Delta} \mathrm{BeF}_2$
(2) $\mathrm{BeH}_2+\mathrm{F}_2 \xrightarrow{\Delta} \mathrm{BeF}_2$
(3) $...
JEE Main Physics Medium
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Q JEE MAIN 2023
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: A solution of the...
JEE Main Chemistry Medium
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Q JEE MAIN 2023
The number of endothermic process/es from the following is ______
(A) $\mathrm{I}_2(\mathrm{~g}) \rightarrow 2 \mathrm{I}(\mathrm{g})$
(B) $\mathrm{HCl}(\mathrm{g}) \rightarrow \mathrm{H}(\mathrm{g})+\mathrm{Cl}(\mathrm{g})$
(C) $\mathrm{H}_2 \mathrm{O}(\mathrm{l}) \rightarrow \mathrm{H}_2 \mathrm{O}(\mathrm{g})$...
JEE Main Chemistry Easy
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Q JEE MAIN 2023
An electron revolves around an infinite cylindrical wire having uniform linear change density $2 \times 10^{-8} \mathrm{Cm}^{-1}$ in circular path under the influence of attractive...
JEE Main Physics Easy
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Q JEE MAIN 2023
The total number of stereoisomers for the complex $\left[\mathrm{Cr}(\mathrm{ox})_2, \mathrm{ClBr}\right]^{3-}$ (where ox $=$ oxalate) is:
JEE Main Chemistry Easy
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