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Assertion : All halogens undergo disprop...

Assertion : All halogens undergo disproportionation reaction in alkaline medium.
Reason : All halogens exhibit variable oxidation states.

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.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. **Assertion:** All halogens undergo disproportionation reaction in alkaline medium. **Reason:** All halogens exhibit variable oxidation states. ### Step-by-Step Solution: 1. **Understanding Disproportionation Reaction:** - A disproportionation reaction is a specific type of redox reaction where a single substance is both oxidized and reduced simultaneously. This means that one part of the substance loses electrons (is oxidized) while another part gains electrons (is reduced). 2. **Analyzing the Assertion:** - The assertion states that all halogens undergo disproportionation reactions in alkaline medium. However, this is not true for all halogens. - For example, chlorine (Cl2) and bromine (Br2) can undergo disproportionation reactions, but fluorine (F2) does not undergo such reactions because it is the most electronegative element and only exists in the -1 oxidation state in compounds. 3. **Analyzing the Reason:** - The reason states that all halogens exhibit variable oxidation states. While it is true that many halogens have variable oxidation states (like Cl, Br, and I), fluorine is an exception. Fluorine only exhibits a single oxidation state of -1 and does not have variable oxidation states. 4. **Conclusion:** - Since the assertion is false (not all halogens undergo disproportionation reactions) and the reason is also false (not all halogens exhibit variable oxidation states), we conclude that both the assertion and reason are incorrect. ### Final Answer: - Both assertion and reason are false. Therefore, the correct option is **Option 4**.
To solve the question, we need to analyze both the assertion and the reason provided. **Assertion:** All halogens undergo disproportionation reaction in alkaline medium. **Reason:** All halogens exhibit variable oxidation states. ### Step-by-Step Solution: 1. **Understanding Disproportionation Reaction:** ...
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