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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
A helicopter is flying horizontally with a speed ' v ' at an altitude ' h ' has to drop a food packet for a...
JEE Main Physics Medium
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Q JEE MAIN 2021 S2
Let $y=y(x)$ be the solution of the differential equation $d y=e^{\alpha x+y} d x ; \alpha \in N$. If $y\left(\log _e 2\right)=\log _e 2$ and...
JEE Main Mathematics Easy
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Q JEE MAIN 2021
When 10 mL of an aqueous solution of $\mathrm{Fe}^{2+}$ ions was titrated in the presence of dil $\mathrm{H}_2 \mathrm{SO}_4$ using diphenylamine indicator, 15 mL of...
JEE Main Chemistry Easy
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Q JEE MAIN 2021 S2
The number of real roots of the equation $e^{4 x}-e^{3 x}-4 e^{2 x}-e^x+1=0$ is equal to $\_\_\_\_$
JEE Main Mathematics Medium
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Q JEE MAIN 2021
Match List-I with List-II :
Choose the correct answer from the options given below :
JEE Main Chemistry Easy
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Q JEE MAIN 2021 S2
If $\int_0^\pi\left(\sin ^3 x\right) e^{-\sin ^2 x} d x=\alpha-\frac{\beta}{e} \int_0^1 \sqrt{t} e^t d t$, then $\alpha+\beta$ is equal to $\_\_\_\_$ .
JEE Main Mathematics Medium
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Q JEE MAIN 2021
A home owner uses $4.00 \times 10^3 \mathrm{~m}^3$ of methane $\left(\mathrm{CH}_4\right)$ gas, (assume $\mathrm{CH}_4$ is an ideal gas) in a year to heat his home....
JEE Main Chemistry Easy
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Q JEE MAIN 2021 S2
Let $E$ be an ellipse whose axes are parallel to the co-ordinates axes, having its center at $(3,-4)$, one focus at $(4,-4)$ and one vertex...
JEE Main Mathematics Medium
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Q JEE MAIN 2021
At 298 K , the enthalpy of fusion of a solid $(\mathrm{X})$ is $2.8 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and the enthalpy of vaporisation of the liquid $(\mathrm{X})$...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
Consider a badminton racket with length scales as shown in the figure. If the mass of the linear and circular portions of the badminton racket...
JEE Main Physics Easy
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