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Which concentrated H2 SO4 can be used to...

Which concentrated `H_2 SO_4` can be used to dry the gas ?

A

`H_2 S`

B

`CO_2`

C

`NH_3`

D

All

Text Solution

Verified by Experts

The correct Answer is:
B
`Conc. H_(2) SO_(4)` reacts with `H_(2) S` and `NH_(3)`, while `CO_(2)` remains unaffected, hence `conc. H_(2) SO_(4)` can be used to dry `CO_(2)` gas.
`H_(2) S + H_(2) SO_(4) rarr S darr + 2H_(2) O + SO_(2)`
`2 NH_(3) + H_(2) SO_(4) rarr (N_(4))_(2) SO_(4)`.
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