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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q _JEE MAIN_2021_
Let a parabola P be such that its vertex and focus lie on the positive x -axis at a distance 2 and 4 units from...
JEE Main Mathematics Easy
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Q JEE MAIN 2021
According to the valence bond theory the hybridization of central metal atom is $\mathrm{dsp}^2$ for which one of the following compounds?
JEE Main Chemistry Easy
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Q JEE MAIN_2021_
Let 9 distinct balls be distributed among 4 boxes, $B_1, B_2, B_3$ and $B_4$. If the probability than $B_3$ contains exactly 3 balls is then...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
Given below are the statements about diborane
(a) Diborane is prepared by the oxidation of NaBH4 with I2
(b) Each boron atom is...
JEE Main Chemistry Medium
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Q JEE MAIN 2021
In the following logic circuit the sequence of the inputs A, B are (0, 0), (0, 1), (1, 0) and (1, 1). The output Y...
JEE Main Physics Easy
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Q JEE MAIN_2021_
The values of $a$ and $b$, for which the system of equations $$ \begin{aligned} & 2 x+3 y+6 z=8 \\ & x+2 y+a z=5 \\...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
A biodegradable polyamide can be made from:
JEE Main Chemistry Easy
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Q JEE MAIN 2021 S2
Let $n$ be a non-negative integer. Then the number of divisors of the form " $4 n+1$ " of the number $(10)^{10} .(11)^{11}$. (13) $...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
When silver nitrate solution is added to potassium iodide solution then the sol produced is :
JEE Main Chemistry Easy
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Q JEE MAIN 2021
Consider the complete combustion of butane, the amount of butane utilized to produce 72.0 g of water is $\times 10^{-1} \mathrm{~g}$. (in nearest integer)
JEE Main Chemistry Easy
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