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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
A s-block element (M) reacts with oxygen to form an oxide of the formula $\mathrm{MO}_2$. The oxide is pale yellow in colour and paramagnetic. The...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
Which one of the following 0.06 M aqueous solutions has lowest freezing point ?
JEE Main Chemistry Easy
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Q JEE MAIN 2021 S2
$\cos ^{-1}(\cos (-5))+\sin ^{-1}(\sin (6))-\tan ^{-1}(\tan (12))$ is equal to :
JEE Main Mathematics Medium
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Q JEE MAIN 2021
Match List I with List II : (Both having metallurgical terms) Choose the correct answer...
JEE Main Chemistry Easy
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Q JEE MAIN 2021

Among the given species the Resonance stabilised carbocations are:
JEE Main Chemistry Easy
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Q JEE MAIN 2021
An object is placed at the focus of concave lens having focal length $f$, What is the magnification and distance of the image from the...
JEE Main Physics Easy
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Q JEE MAIN 2021 S2
Let $f: R \rightarrow R$ be a continuous function. Then $\lim _{x \rightarrow \frac{\pi}{4}} \frac{\frac{\pi}{4} \int_2^{\sec ^2 x} f(x) d x}{x^2-\frac{\pi^2}{16}}$ is equal to :
JEE Main Mathematics Easy
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Q JEE MAIN 2021
An organic compound A $\left(\mathrm{C}_6 \mathrm{H}_6 \mathrm{O}\right)$ gives dark green colouration with ferric chloride. On treatment with $\mathrm{CHCl}_3$ and KOH, followed by acidification gives compound...
JEE Main Chemistry Medium
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Q JEE MAIN 2021
An inorganic Compound ' $X$ ' on treatment with concentrated $\mathrm{H}_2 \mathrm{SO}_4$ produces brown fumes and gives dark brown ring with $\mathrm{FeSO}_4$ in presence of...
JEE Main Chemistry Medium
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Q JEE MAIN 2021 S2
If $A=\left[\begin{array}{lll}1 & 1 & 1 \\ 0 & 1 & 1 \\ 0 & 0 & 1\end{array}\right]$ and $M=A+A^2+A^3+\ldots \ldots+A^{20}$, then the sum of...
JEE Main Mathematics Medium
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