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Hydrogen

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2019
The temporary hardness of water is due to
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Q JEE-MAIN 2019
The hardness of a water sample (in terms of equivalents of $\mathrm{CaCO}_3$ ) containing $10^{-3} \mathrm{M} \mathrm{CaSO}_4$ is (molar mass of $\mathrm{CaSO}_4=136 \mathrm{~g} \mathrm{~mol}^{-1}$ )
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Q JEE MAIN 2019
The volume strength of $1 \mathrm{M} \mathrm{H}_2 \mathrm{O}_2$ is (Molar mass of $\mathrm{H}_2 \mathrm{O}_2=34 \mathrm{~g} \mathrm{~mol}^{-1}$ )
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Q JEE MAIN 2020
The equation that represents the water-gas shift reaction is
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Q JEE MAIN 2020
The hardness of a water sample containing $10^{-3} \mathrm{M} \mathrm{MgSO}_4$ expressed as $\mathrm{CaCO}_3$ equivalents (in ppm) is $\_\_\_\_$ . (molar mass of $\mathrm{MgSO}_4$ is $...
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Q JEE MAIN 2019
NaH is an example of
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Q JEE MAIN 2019
The correct statements among (a) to (d) regarding $\mathrm{H}_2$ as a fuel are
(a) It produces less pollutants than petrol.
(b) A cylinder of compressed...
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Q JEE-MAIN 2020
The one that is NOT suitable for the removal of permanent hardness of water is
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Q JEE MAIN 2020
Hydrogen peroxide, in the pure state, is
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Q JEE Main 2019
The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are
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