1.

`H_2SO_4` cannot be used to prepare HI from KI as :A. Its reaction with Kl is very slowB. It oxidises HI to iodineC. It disproportionates HID. It reduces HI

Answer» Correct Answer - B
`H_2SO_4` is stonger oxidising agent and HI is stonger reducing agent. So `H_2SO_4` oxidises HI to `l_2` and is itself reduced to `SO_2`
`Nal+H_2SO_4toNaHSO_4+HI`
`HI+H_2SO_4 to I_2 + SO_2 + 2H_2O`


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