Assertion: HI can not be prepared by the action of cone. H2SO4 on Kl. Reason: HI is more volatile than H2SO4.

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If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion. Explanation: The assertion is correct because HI cannot be prepared by the action of concentrated H2SO4 on KI since HI is easily oxidised by H2SO4 to iodine. The reason is correct because HI is more volatile than H2SO4, so it tends to escape and also is easily oxidised by the strong oxidizing agent H2SO4, preventing its formation. Thus, the reason correctly explains the assertion Hence, both Assertion and Reason are correct, and the Reason is the correct explanation of the Assertion.

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