Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Assertion Reason Single Correct MCQ
Published on: August 14, 2026

In this type of questions, a statement of assertion is followed by a statement of reason

(R). Mark the correct choice as:

Assertion : Chlorine undergoes disproportionation reaction in alkaline medium.
Reason: is an oxidising agent.

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.

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Text Solution

Verified by Experts
The correct answer is:
B

(dilute)

Chlorine undergoes simultaneous oxidation-reduction. Chlorine is simultaneously reduced to chloride ion and is oxidised to either or ion. Halogens (e.g., Cl) have a strong tendency to accept electrons, so they act as strong oxidising agents.

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