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2019 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2019
Heating of 2-chloro-1-phenylbutane with EtOK/ EtOH gives $X$ as the major product. Reaction of $X$ with $\mathrm{Hg}(\mathrm{OAc})_2 / \mathrm{H}_2 \mathrm{O}$ followed by $\mathrm{NaBH}_4$ gives Y...
JEE Main Chemistry Medium
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Q JEE MAIN 2019
Two moles of helium gas is mixed with three moles of hydrogen molecules (taken to be rigid). What is the molar specific heat of mixture...
JEE Main Physics Easy
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Q JEE MAIN 2019
Let $z_0$ be a root of the quadratic equation, $x^2+x+1=0$. If $z=3+6 i z_0^{81}-3 i z_0^{93}$, then arg $z$ is equal to
JEE Main Mathematics Easy
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Q JEE-MAIN 2019
In the Hall-Heroult process, aluminium is formed at the cathode. The cathode is made out of
JEE Main Chemistry Easy
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Q JEE MAIN 2019
The temporary hardness of a water sample is due to compound X. Boiling this sample converts X to compound Y. X and Y, respectively are:
JEE Main Chemistry Easy
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Q JEE MAIN 2019
When M1 gram of ice at $-10^{\circ} \mathrm{C}$ (specific heat $=0.5 \mathrm{cal} \mathrm{g}^{-1 \circ} \mathrm{C}^{-1}$ ) is added to $\mathrm{M}_2$ gram of water at $...
JEE Main Physics Medium
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Q JEE MAIN 2019
If $x=\sin ^{-1}(\sin 10)$ and $y=\cos ^{-1}(\cos 10)$, then $y-x$ is equal to
JEE Main Mathematics Medium
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Q JEE MAIN 2019
Let $f$ be a differentiable function from $R$ to $R$ such that $|f(x)-f(y)| \leq 2|x-y|^{\frac{3}{2}}$, for all $x, y \in R$. If $f(0)=1$ then $...
JEE Main Mathematics Hard
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Q JEE MAIN 2019
A man (mass $=50 \mathrm{~kg}$ ) and his son (mass $=20 \mathrm{~kg}$ ) are standing on a frictionless surface facing each other. The man pushes...
JEE Main Physics Medium
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Q JEE MAIN 2019
The molar solubility of $\mathrm{Cd}(\mathrm{OH})_2$ is $1.84 \times 10^{-5} \mathrm{M}$ in water. The expected solubility of $\mathrm{Cd}(\mathrm{OH})_2$ in a buffer solution of $\mathrm{pH}=12$ is:
JEE Main Chemistry Medium
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