Assertion(A): Halogen acids react with alcohols to form haloalkanes
Reason (R): Order of reactivity of halogen acids towards alcohol HCl>HBr>HI

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Both A and R are correct and R is not correct explanation of A

A is correct but B is incorrect

Both A and B are correct

Both A and R are correct and R is the correct explanation of A

answer is C.

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Detailed Solution

For a given alcohol the order of reactivity of halogen acids follows the sequence HI>HBr>HCl because I is a stronger nucleophile than Br which in turn is a stronger nucleophile than Cl.

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