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Assertion: HI cannot be prepared by the reaction of $\mathrm{KI}$ with concentrated $\mathrm{H}_2 \mathrm{SO}_4$.
Reason: $\mathrm{HI}$ has lowest $\mathrm{H}-\mathrm{X}$ bond strength among halogen acids.
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Reason: $\mathrm{HI}$ has lowest $\mathrm{H}-\mathrm{X}$ bond strength among halogen acids.
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The correct answer is:
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
HI cannot be prepared by the reacton of $\mathrm{Kl}$ with concentrated $\mathrm{H}_2 \mathrm{SO}_4$ because $\mathrm{HI}$ is converted into $\mathrm{I}_2$ on reaction with $\mathrm{H}_2 \mathrm{SO}_4$.
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