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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021 S2
Let $N$ be the set of natural numbers and a relation $R$ on $N$ be defined by $...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
Which of the following compounds will provide a tertiary alcohol on reaction with excess of CH3MgBr followed by hydrolysis?
JEE Main Chemistry Easy
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Q JEE MAIN 2021
$\mathrm{PCl}_5(\mathrm{~g}) \rightarrow \mathrm{PCl}_3(\mathrm{~g})+\mathrm{Cl}_2(\mathrm{~g})$ In the above first order reaction the concentration of $\mathrm{PCl}_5$ reduces from initial concentration $50 \mathrm{~mol} \mathrm{~L}^{-1}$ to $10 \mathrm{~mol} \mathrm{~L}^{-1}$ in...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
In the leaching of alumina from bauxite, the ore expected to leach out in the process by reacting with NaOH is:
JEE Main Chemistry Easy
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Q JEE MAIN_2021_
The Boolean expression $(P \Rightarrow q) \wedge(q \Rightarrow \sim p)$ is equivalent to:
JEE Main Mathematics Medium
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Q JEE MAIN 2021
Two spherical balls having equal masses with radius of 5 cm each are thrown upwards along the same vertical direction at an interval of 3s...
JEE Main Physics Easy
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Q JEE MAIN 2021 S2
Let $f:[0, \infty) \rightarrow[0,3]$ be a function defined by $...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
Which one of the following compounds will liberate $\mathrm{CO}_2$, when treated with $\mathrm{NaHCO}_3$ ?
JEE Main Chemistry Easy
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Q JEE MAIN_2021
Let $y=y(x)$ be the solution of the differential equation $\frac{d}{d x}=1+x e^{y-x},-\sqrt{2}
JEE Main Mathematics Medium
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Q JEE MAIN 2021 S2
Let $\alpha=\max _{x \in R}\left\{8^{2 \sin 3 x} \cdot 4^{4 \cos 3 x}\right\}$ and $...
JEE Main Mathematics Medium
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