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Question: Answered & Verified by Expert
Assertion : $\mathrm{I}_2 \mathrm{O}_5$ is used to detect CO.
Reason : In $\mathrm{I}_2 \mathrm{O}_5$, the oxidation number of I is +5 .
Chemistryp Block Elements (Group 13 & 14)AIIMSAIIMS 2019 (26 May)
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion.
  • B If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C If assertion is true but reason is false.
  • D If both assertion and reason are false.
Solution:
2102 Upvotes Verified Answer
The correct answer is: If both assertion and reason are true but reason is not the correct explanation of assertion.
$\begin{aligned} & \text { } \mathrm{I}_2 \mathrm{O}_5+5 \mathrm{CO} \longrightarrow \mathrm{I}_2+5 \mathrm{CO}_2 \\ & \mathrm{I}_2+2 \mathrm{Na}_2 \mathrm{~S}_2 \mathrm{O}_3 \longrightarrow \mathrm{Na}_2 \mathrm{~S}_4 \mathrm{O}_6+2 \mathrm{NaI}\end{aligned}$

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