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Assertion Pb \( C l_{2} \) is more stable than \( P b C l_{4} \) Reason PbCl \( _{4} \) is powerful oxidising agent.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Assertion is incorrect but Reason is correct

Correct answer: Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Solution

PbCl2 is more stable than PbCl4 because lead shows a strong inert pair effect, making the +2 oxidation state more stable than +4. PbCl4 is indeed a strong oxidizing agent, but that is a consequence of its tendency to get reduced to the more stable +2 state, not the direct explanation of why PbCl2 is more stable.

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