Why conc. sulphuric acid is not used to dry hydrogen?

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Solution

Conc. Sulphuric acid $(H_{2} {SO}_{4})$ is not used to dry hydrogen because absorbing water from moist $H_{2}$ produces so much heat that $H_{2}$ catches fire and forms ${SO}_{2}$ .
$\underset{Sulphuric acid}{H_{2} {SO}_{4}} + H_{2} \to 2 H_{2} O + \underset{Sulphur dioxide}{{SO}_{2}}$

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Why is hot concentrated Sulphuric acid not used in the preparation of Hydrogen ?

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(b) $H_{2} S O_{4}$ is not used as a drying agent for $H_{2} S$ ?

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Q. Why is Concentrated Sulphuric acid not used as a drying agent to dry Hydrogen gas?

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Why conc. sulphuric acid is not used to dry hydrogen?

Conc. Sulphuric acidH2SO4 is not used to dry hydrogen because absorbing water from moist H2 produces so much heat that H2​ catches fire and forms SO2. H2SO4Sulphuricacid+H2→2H2O+SO2Sulphurdioxide

Conc. Sulphuric acid $(H_{2} {SO}_{4})$ is not used to dry hydrogen because absorbing water from moist $H_{2}$ produces so much heat that $H_{2}$ catches fire and forms ${SO}_{2}$ .
$\underset{Sulphuric acid}{H_{2} {SO}_{4}} + H_{2} \to 2 H_{2} O + \underset{Sulphur dioxide}{{SO}_{2}}$