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Why is sulphuric acid not during the rea...

Why is sulphuric acid not during the reaction of alcohols with KI?

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Since con.`H_2SO_4` is an oxidising agent, It oxidises HI formed in the reaction to `I_2`
`2KI + H_2SO_4 rarr 2KHSO_4 + 2HI`
`2HI + H_2SO_4 rarr 2H_2O + SO_2 + I_2`
So HI will not be available for reaction with alcohol to from alkyl iodide.
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