Question

Assertion :Both $S{O}_2$ and $S{O}_3$ are reducing agents Reason: Both $S{O}_2$ and $S{O}_3$ bleach the articles by reduction

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is D Both Assertion and Reason are incorrect

$S{O}_3$ is not used as a reducing agent since it cannot donate a lone pair of electrons. The bleaching action of sulphur is based on oxidation. Since $S{O}_3$ cannot be used as a reducing agent, it cannot be used to bleach articles.