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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
For the following :
JEE Main Chemistry Medium
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Q JEE MAIN 2021
The major product (A) formed in the reaction given below is
JEE Main Chemistry Easy
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Q JEE Main 2021
If $A=\left(\begin{array}{cc}\frac{1}{\sqrt{5}} & \frac{2}{\sqrt{5}} \\ \frac{-2}{\sqrt{5}} & \frac{1}{\sqrt{5}}\end{array}\right), B=\left(\begin{array}{ll}1 & 0 \\ i & 1\end{array}\right), i=\sqrt{-1}$, and $Q=A^{\top} B A$, then the inverse of the...
JEE Main Mathematics Hard
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Q JEE MAIN 2021
If the minimum area of the triangle formed by a tangent to the ellipse $\frac{x^2}{b^2}+\frac{y^2}{4 a^2}=1$ and the co-ordinate axis is kab , then k...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
Excess of isobutane on reaction with $\mathrm{Br}_2$ in presence of light at $125^{\circ} \mathrm{C}$ gives which one of the following, as the major product?
JEE Main Chemistry Easy
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Q JEE MAIN 2021
The major product of the following reaction is :
JEE Main Chemistry Easy
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Q JEE Main 2021
The value of $\int_{\frac{-1}{\sqrt{2}}}^{\frac{1}{\sqrt{2}}}\left(\left(\frac{x+1}{x-1}\right)^2+\left(\frac{x-1}{x+1}\right)^2-2\right)^{\frac{1}{2}} d x$ is
JEE Main Mathematics Medium
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Q JEE MAIN 2021
Let n be an odd natural number such that the variance of 1, 2, 3, 4, ...., n is 14. Then n is equal to
JEE Main Mathematics Easy
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Q JEE MAIN 2021
If the system of linear equations $$ \begin{aligned} & 2 x+y-z=3 \\ & x-y-z=\alpha \\ & 3 x+3 y+\beta z=3 \end{aligned} $$ has infinitely many...
JEE Main Mathematics Easy
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Q JEE MAIN 2021
Match List-I with List-II :
JEE Main Chemistry Easy
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