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Acidity of diprotic acids in aqueous solutions increases in the order

Acidity of diprotic acids in aqueous solutions increases in the order

Options

(a) H₂S (b) H₂Se (c) H₂Te (d) H₂Se

Correct Answer:

H₂S Explanation:

The weaking of M-H bond with increase in size of M(where M=s, Se, Te) explains the acid character of hydrides. Since on moving down the group atomic size increases hence bondlength increases and hence removal tendency of H also increases.

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