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2020 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2020
Among statements (a) - (d), the correct ones are
(a) Lime stone is decomposed to CaO during the extraction of iron from its oxides.
(b)...
JEE Main Chemistry Medium
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Q JEE MAIN 2020
A sample of red ink (a colloidal suspension) is prepared by mixing eosin dye, egg white, HCHO and water. The component which ensures stability of...
JEE Main Chemistry Easy
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Q JEE-MAIN 2020
If the sum of the series $20+19 \frac{3}{5}+19 \frac{1}{5}+18 \frac{4}{5}+\ldots .$. upto $n$th term is 488 and the $n$th term is negative, then
JEE Main Mathematics Easy
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Q JEE MAIN 2020
A sample of milk splits after 60 min. at 300 K and after 40 min. at 400 K when the population of lactobacillus acidophilus in...
JEE Main Chemistry Easy
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Q JEE MAIN 2020
The length of the perpendicular from the origin, on the normal to the curve, $x^2+2 x y-3 y^2=0$ at the point $(2,2)$ is
JEE Main Mathematics Medium
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Q JEE MAIN 2020
Two particles of equal mass $m$ have respective initial velocities $u \hat{i}$ and $u\left(\frac{\hat{i}+\hat{j}}{2}\right)$. They collide completely inelastically. The energy lost in the process is:
JEE Main Physics Medium
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Q JEE MAIN 2020
The set of all real values of $\lambda$ for which the quadratic equations, $\left(\lambda^2+1\right) x^2-4 \lambda x+2=0$ always have exactly one root in the interval...
JEE Main Mathematics Easy
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Q JEE MAIN 2020
The molecule in which hybrid MOs involve only one d-orbital of the central atom is
JEE Main Chemistry Easy
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Q JEE MAIN 2020
Water flows in a horizontal tube (see figure). The pressure of water changes by $700 \mathrm{Nm}^{-2}$ between A and $B$ where the area of cross...
JEE Main Physics Hard
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Q JEE MAIN 2020
The system of linear equations
$...
JEE Main Mathematics Medium
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