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

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

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We don't use sulphuric acid because it acts as an oxidising agent and the required alkyl iodide is not produced. The reactions are given below :-

                      2KI  +  H2SO4     →    2KHSO4  + 2HI

                      2HI  + H2SO4    →  I2  +  SO2  +  H2O

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