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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE Main 2021
The sum of solutions of the equation $\frac{\cos x}{1+\sin x}=|\tan 2 x|, x \in\left(-\frac{\pi}{2}, \frac{\pi}{2}\right)-\left\{\frac{\pi}{4}-\frac{\pi}{4}\right\}$ is :
JEE Main Mathematics Medium
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Q JEE MAIN 2021
The correct options for the products A and B of the following reactions are :
JEE Main Chemistry Easy
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Q JEE MAIN 2021
In stratosphere most of the ozone formation is assisted by :
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Q JEE MAIN 2021
The $\mathrm{Eu}^{2+}$ ion is a strong reducing agent in spite of its ground state electronic configuration (outermost) : [Atomic number of Eu = 63]
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Q JEE MAIN 2021
Given below are two statements:
Statement 1: The limiting molar conductivity of KCl (strong electrolyte) is higher compared to that of $\mathrm{CH}_3 \mathrm{COOH}$ (weak...
JEE Main Chemistry Medium
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Q JEE MAIN 2021
Arrange the following conformational isomers of n-butane in order of their increasing potential energy :
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Q JEE MAIN 2021
Let $Q$ be the foot of the perpendicular from the point $P(7,-2,13)$ on the plane containing the lines $\frac{x+1}{6}=\frac{y-1}{7}=\frac{z-3}{8}$ and $\frac{x-1}{3}=\frac{y-2}{5}=\frac{z-3}{7}$. Then $(P Q)^2$, is...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
The polymer formed on heating Novolac with formaldehyde is :
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Q JEE MAIN 2021
Statement I : Ethyl pent- $4-$ yn-oate on reaction with $\mathrm{CH}_3 \mathrm{MgBr}$ gives a $3^{\circ}-$ alcohol.
Statement II : In this reaction one mole of...
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Q JEE MAIN 2021
The major product formed in the following reaction is :
JEE Main Chemistry Medium
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