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Question: Answered & Verified by Expert
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.
Chemistryp Block Elements (Group 15, 16, 17 & 18)
Options:
  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If the Assertion is incorrect but the Reason is correct.
Solution:
1697 Upvotes Verified Answer
The correct answer is:
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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