AIIMS2017Chemistry-Oxidation States

AIIMS 2017 Chemistry Inert Pair Effect Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 12

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choice.

Assertion (A) Pb4+\text{Pb}^{4+} compounds are stronger oxidising agents than Sn Pb4+\text{Pb}^{4+} compounds.

Reason (R) The higher oxidation state for group-14 elements are more stable for the heavier members of the group due to inert pair effect.

A

Both the statements are true and Reason is the correct explanation of Assertion.

B

Both the statements are true but Reason is not the correct explanation of Assertion.

C

Assertion is true but Reason is false.

D

Both Assertion and Reason are false.

Correct Answer

Option B

Detailed Explanation

Pb⁴⁺ is indeed a stronger oxidizing agent than Sn⁴⁺ due to its higher oxidation state and greater tendency to accept electrons, making it more reactive in redox reactions. However, the reason provided does not adequately explain this assertion, as it may not directly address the comparative electrochemical properties or the specific reaction conditions influencing their oxidizing abilities.

Option A is incorrect because, while both statements are true, the reason does not correctly explain the assertion. Option C is incorrect because it incorrectly states that the assertion is true while claiming the reason is false. Option D is incorrect as both statements are actually true.

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