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HI cannot be prepared by the action of c...

HI cannot be prepared by the action of conc. `H_(2)SO_(4)` on KI because

A

`HI` is stronger than `H_(2)SO_(4)`

B

`HI` is more volatile than `H_(2)SO_(4)`

C

`H_(2)SO_(4)` is an oxidising agent

D

`H_(2)SO_(4)` forms complex

Text Solution

Verified by Experts

The correct Answer is:
C
`KI+H_(2)SO_(4)rarrKHSO_(4)+HI`
`HI` is formed but it is further oxidised by conc. `H_(2)SO_(4)` into `I_(2) 2HI+H_(2)SO_(4)rarr2H_(2)O+underset("Viilet va pour")(I_(2))+SO_(2)uarr`
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