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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_2SO_4`

B

HI is more volatile than `H_2SO_4`

C

`H_2SO_4` is an oxidising agent

D

`H_2SO_4` forms complex.

Text Solution

Verified by Experts

The correct Answer is:
C
`({:(KI+H_2SO_4to,KHSO_4+HI"]"xx2),(H_2SO_4to,H_2O+SO_2+O),(2HI+Oto,H_2O+I_2):})/ul(2KI+3H_2SO_4 to 2KHSO_4 +2H_2O +SO_2+I_2)`
HI formed is oxidised by con. `H_2SO_4` (a strong O.A.) to `I_2`.
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