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2023 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2023
The bond order and magnetic property of acetylide ion are same as that of
JEE Main Chemistry Medium
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Q JEE MAIN 2023
Number of hydrogen atoms per molecule of a hydrocarbon A having 85.8% carbon is _________ (Given : Molar mass of A = 84 g mol–1)
JEE Main Chemistry Easy
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Q JEE MAIN 2023
$\mathrm{O}-\mathrm{O}$ bond length in $\mathrm{H}_2 \mathrm{O}_2$ is $X$ than the $\mathrm{O}-\mathrm{O}$ bond length in $\mathrm{F}_2 \mathrm{O}_2$. The $\mathrm{O}-\mathrm{H}$ bond length in $\mathrm{H}_2 \mathrm{O}_2$ is $\underline{Y}$...
JEE Main Chemistry Easy
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Q JEE MAIN 2023
When 0.01 mol of an organic compound containing $60 \%$ carbon was burnt completely, 4.4 g of CO2was produced. The molar mass of compound is...
JEE Main Chemistry Medium
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Q JEE MAIN 2023
A circular loop of radius r is carrying current I A. The ratio of magnetic field at the centre of circular loop and at a...
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) : The first...
JEE Main Chemistry Hard
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Q JEE MAIN 2023
For electron gain enthalpies of the elements denoted as $\Delta_{\mathrm{eq}} \mathrm{H}$, the incorrect option is:
JEE Main Chemistry Medium
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Q JEE MAIN 2023
Correct statements for the given reaction are: A. Compound 'B' is aromatic
B. The...
JEE Main Chemistry Medium
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Q JEE MAIN 2023
If $\vec{E}$ and $\vec{K}$ represent electric field and propagation vectors of the EM waves in vacuum, then magnetic field vector is given by: ( $\omega$...
JEE Main Physics Medium
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Q JEE MAIN 2023
Lead storage battery contains $38 \%$ by weight solution of $\mathrm{H}_2 \mathrm{SO}_4$. The van't Hoff factor is 2.67 at this concentration. The temperature in Kelvin...
JEE Main Chemistry Medium
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