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2019 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2019
An ideal gas is allowed to expand from 1 L to 10 L against a constant external pressure of 1 bar. The work done in...
JEE Main Chemistry Medium
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Q JEE MAIN 2019
What is the molar solubility of $\mathrm{Al}(\mathrm{OH})_3$ in 0.2 M NaOH solution? Given that, solubility product of $\mathrm{Al}(\mathrm{OH})_3=2.4 \times 10^{-2}$
JEE Main Chemistry Medium
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Q JEE MAIN 2019
The group number, number of valence electrons, and valency of an element with atomic number 15, respectively, are
JEE Main Chemistry Medium
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Q JEE MAIN 2019
The mole fraction of a solvent in aqueous solution of a solute is 0.8 . The molality (in $\mathrm{mol} \mathrm{kg}-1$ ) of the aqueous solution...
JEE Main Chemistry Medium
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Q JEE MAIN 2019
JEE Main Mathematics Hard
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Q JEE MAIN 2019
The basic structural unit of feldspar, zeolites, mica, and asbestos is
JEE Main Chemistry Medium
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Q JEE MAIN 2019
Let $z \in C$ with $\operatorname{lm}(z)=10$ and it satisfies $\frac{2 z-n}{2 z+n}=2 i-1$ for some natural number $n$. Then :
JEE Main Mathematics Easy
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Q JEE MAIN_2019_
Match the refining methods (Column I) with metals (Column II). Column I Column II (Refining methods) (Metals) (I) Liquation (a) Zr (II) Zone Refining (b)...
JEE Main Chemistry Easy
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Q JEE MAIN 2019
An organic compound ' A ' is oxidized with $\mathrm{Na}_2 \mathrm{O}_2$ followed by boiling with $\mathrm{HNO}_3$. The resultant solution is then treated with ammonium molybdate...
JEE Main Chemistry Medium
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Q JEE MAIN 2019
A value of $\alpha$ such that $$ \int_\alpha^{\alpha+1} \frac{\mathrm{dx}}{(\mathrm{x}+\alpha)(\mathrm{x}+\alpha+1)}=\log _{\mathrm{e}}\left(\frac{9}{8}\right) \text { is: } $$
JEE Main Mathematics Medium
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