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2019 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2019
If $B=\left[\begin{array}{ccc}5 & 2 \alpha & 1 \\ 0 & 2 & 1\end{array}\right]$ is the inverse of a $3 \times 3$ matrix $A$, then the...
JEE Main Mathematics Easy
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Q JEE MAIN 2019
If $\alpha$ and $\beta$ are the roots of the equation $375 x^2-25 x-2=0$, then $\lim _{n \rightarrow \infty} \sum_{r=1}^n \alpha^r+\lim _{n \rightarrow \infty} \sum_{r=1}^n \beta^r$...
JEE Main Mathematics Medium
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Q JEE MAIN 2019
If $A$ is a symmetric matrix and $B$ is a skew-symmetric matrix such that $A+B=\left[\begin{array}{cc}2 & 3 \\ 5 & -1\end{array}\right]$, then $A B$ is...
JEE Main Mathematics Medium
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Q JEE MAIN 2019
The correct statement among the following is
JEE Main Chemistry Medium
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Q JEE MAIN 2019
The major products of the following reaction are
JEE Main Chemistry Medium
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Q JEE MAIN 2019
Enthalpy of sublimation of iodine is $24 \mathrm{cal} \mathrm{g}^{-1}$ at $200^{\circ} \mathrm{C}$. If specific heat of $\mathrm{I}_2(\mathrm{~s})$ and $\mathrm{I}_2(\mathrm{vap})$ are 0.055 and $...
JEE Main Chemistry Medium
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Q JEE MAIN 2019
The correct set of species responsible for the photochemical smog is :
JEE Main Chemistry Medium
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Q JEE MAIN 2019
Peptization is a
JEE Main Chemistry Medium
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Q JEE Main
Which of the following is a thermosetting polymer?
JEE Main Chemistry Medium
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Q JEE MAIN 2019
The idea of froth floatation method came from a person X and this method is related to the process Y of ores. X and Y,...
JEE Main Chemistry Medium
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