A hydrocarbon 'X' with formula $\mathrm{C}_6 \mathrm{H}_8$ uses two moles of $\mathrm{H}_2$ on catalytic hydrogenation of its one mole. On ozonolysis, 'X' yields two moles...
JEE MainChemistryEasy
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QJEE MAIN_2023
A point charge of 10 μC is placed at the origin. At what location on the X-axis should a point charge of 40μC be placed...
JEE MainPhysicsMedium
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QJEE MAIN 2023
A ball is dropped from a height of 20 m. If the coefficient of restitution for the collision between ball and floor is 0.5, after...
JEE MainPhysicsMedium
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QJEE MAIN 2023
When the hydrogen ion concentration [H+] changes by a factor of 1000, the value of pH of the solution _______.
JEE MainChemistryEasy
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QJEE MAIN 2023
A water heater of power 2000 W is used to heat water. The specific heat capacity of water is $4200 \mathrm{~J} \mathrm{~kg}^{-} { }^1 \mathrm{~K}^{-1}$....
JEE MainPhysicsMedium
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QJEE MAIN 2023
When a hydrocarbon A undergoes combustion in the presence of air, it requires 9.5 equivalents of oxygen and produces 3 equivalents of water. What is...
JEE MainChemistryEasy
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QJEE MAIN 2023
The graph which represents the following reaction is :
$\left(\mathrm{C}_6 \mathrm{H}_5\right)_3 \mathrm{C}-\mathrm{Cl} \xrightarrow[\text { Pyyidine }]{\mathrm{OH}^{-}}\left(\mathrm{C}_6 \mathrm{H}_5\right)_3 \mathrm{C}-\mathrm{OH}$
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