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2020 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2020
Which of the following will react with $\mathrm{CHCl}_3+$ alc. KOH ?
JEE Main Chemistry Medium
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Q JEE MAIN 2020
Among the statements (a)-(d), the correct ones are
(a) Lithium has the highest hydration enthalpy among the alkali metals.
(b) Lithium chloride is insoluble in...
JEE Main Chemistry Easy
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Q JEE MAIN 2020
The isomer(s) of $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]$ that has/have a $\mathrm{Cl}-\mathrm{Co}-\mathrm{Cl}$ angle of $90^{\circ}$, is/are
JEE Main Chemistry Easy
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Q JEE MAIN 2020
An alkaline earth metal ‘M’ readily forms water soluble sulphate and water insoluble hydroxide. Its oxide MO is very stable to heat and does not...
JEE Main Chemistry Medium
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Q JEE MAIN 2020
The electric fields of two plane electromagnetic plane waves in vacuum are given by
$...
JEE Main Physics Easy
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Q JEE MAIN 2020
A, B and C are three biomolecules. The results of the tests performed on them are given below
JEE Main Chemistry Medium
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Q JEE MAIN 2020
Consider a force $\vec{F}=-x \hat{i}+y \hat{j}$. The work done by this force in moving a particle from point $\mathrm{A}(1,0)$ to $B(0,1)$ along the line segment...
JEE Main Physics Easy
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Q JEE MAIN 2020
The reaction in which the hybridisation of the underlined atom is affected is
JEE Main Chemistry Medium
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Q JEE MAIN 2020
A particle moving with kinetic energy E has de Broglie wavelength $\lambda$. If energy $\Delta \mathrm{E}$ is added to its energy, the wavelength become $...
JEE Main Physics Easy
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Q JEE MAIN 2020
The first and second ionisation enthalpies of a metal are 496 and $4560 \mathrm{~kJ} \mathrm{~mol}^{-1}$, respectively. How many moles of HCl and $\mathrm{H}_2 \mathrm{SO}_4$, respectively,...
JEE Main Chemistry Easy
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