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2020 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2020
The electronic configurations of bivalent europium and trivalent cerium are
(atomic number : Xe = 54, Ce = 58, Eu = 63)
JEE Main Chemistry Easy
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Q JEE MAIN 2020
JEE Main Physics Medium
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Q JEE-MAIN 2020
If the length of the chord of the circle, $x^2+y^2=r^2(r>0)$ along the line, $y-2 x=3$ is $r$, then $r^2$ is equal to:
JEE Main Mathematics Easy
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Q JEE MAIN 2020
An insect is at the bottom of a hemispherical ditch of radius 1 m . It crawls up the ditch but starts slipping after it...
JEE Main Physics Easy
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Q JEE MAIN 2020
Complex $X$ of composition $\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6 \mathrm{Cl}_n$ has a spin only magnetic moment of 3.83 BM . It reacts with $\mathrm{AgNO}_3$ and shows geometrical isomerism....
JEE Main Chemistry Easy
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Q JEE-MAIN 2020
If $\alpha$ and $\beta$ are the roots of the equation, $7 x^2-3 x-2=0$, then the value of $\frac{\alpha}{1-\alpha^2}+\frac{\beta}{1-\beta^2}$ is equal to :
JEE Main Mathematics Easy
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Q JEE MAIN 2020
The major product Z obtained in the following reaction scheme is
JEE Main Chemistry Easy
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Q JEE MAIN 2020
If $c$ is a point at which Rolle's theorem holds for the function, $f(x)=\log _e\left(\frac{x^2+\alpha}{7 x}\right)$ in interval $[3,4]$, where $\alpha \in R$, then $...
JEE Main Mathematics Hard
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Q JEE MAIN 2020
A screw gauge has 50 divisions on its circular scale. The circular scale is 4 units ahead of the pitch scale marking, prior to use....
JEE Main Physics Medium
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Q JEE MAIN 2020
A student measuring the diameter of a pencil of circular cross-section with the help of a vernier scale records the following four readings 5.50 mm,...
JEE Main Physics Easy
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