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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
If $A=\{x \in \mathbf{R}:|x-2|>1\}, B=\left\{x \in \mathbf{R}: \sqrt{x^2-3}>1\right\}, C=\{x \in \mathbf{R}:|x-4| \geq 2\}$ and $\mathbf{Z}$ is the set of all integers, then the number of...
JEE Main Mathematics Easy
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Q JEE MAIN_2021_
The angle between the straight lines, whose direction cosines are given by the equations $2 \ell+2 \mathrm{~m}-\mathrm{n}=0$ and $\mathrm{mn}+\mathrm{n} \ell+\ell \mathrm{m}=0$, is:
JEE Main Mathematics Easy
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Q JEE Main 2021
The equation arg $\left(\frac{z-1}{z+1}\right)=\frac{\pi}{4}$ represents a circle with:
JEE Main Mathematics Medium
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Q JEE MAIN 2021
Let the equation $x^2+y^2+p x+(1-p) y+5=0$ represent circles of varying radius $r \in(0,5]$. Then the number of elements in the set $S=\left\{q: q=p^2\right.$ and $q$...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
The correct order of ionic radii for the ions, $\mathrm{P}^{3-}, \mathrm{S}^{2-}, \mathrm{Ca}^{2+}, \mathrm{K}^{+}, \mathrm{Cl}^{-}$is
JEE Main Chemistry Easy
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Q JEE MAIN_2021_
Let $S$ be the sum of all solutions (in radians) of the equation $\sin ^4 q+\cos ^4 q-\sin q \cos q=0$ in $[0,4 \pi]$. Then...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
The correct sequential addition of reagents in the preparation of 3-nitrobenzoic acid from benzene is:
JEE Main Chemistry Medium
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Q JEE MAIN 2021
The number of distinct real roots of the equation $3 x^4+4 x^3-12 x^2+4=0$ is $\_\_\_\_$ .
JEE Main Mathematics Medium
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Q JEE Main 2021
Out of all the patients in a hospital 89% are found to be suffering from heart ailment and 98% are suffering from lungs infection. If...
JEE Main Mathematics Easy
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Q JEE MAIN_2021_
Let $S$ be the mirror image of the point $Q(1,3,4)$ with respect to the plane $2 x-y+z+3=0$ and let $R(3,5, \gamma)$ be a point of...
JEE Main Mathematics Easy
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