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Question

Assertion :Bond angle of H2S is smaller than H2O. Reason: As the electronegativity of the central atom increases, bond angle decreases.

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

The correct option is C Assertion is correct but Reason is incorrect
Bond angle of H2S(92o)<H2O(104o31).
As the electronegativity of the central atom decreases, bond angle decreases. In the present case, S is less electronegative than oxygen. Thus bond pairs in H2S are more away from the central atom than in H2O and thu,s repulsive forces between bond pairs are smaller producing smaller bond angle.
Hence, assertion is correct but reason is incorrect.

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