Acidity of diprotic acids in aqueous solutions increases in the order

Acidity Of Diprotic Acids In Aqueous Solutions Increases In The Chemistry Question

Acidity of diprotic acids in aqueous solutions increases in the order

Options

(a) H₂S < H₂Se < H₂Te
(b) H₂Se < H₂S < H₂S
(c) H₂Te < H₂S < H₂Se
(d) H₂Se < H₂Te < H₂S

Correct Answer:

H₂S < H₂Se < H₂Te

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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Topics: P Block Elements in Group 15 (89)
Subject: Chemistry (2512)

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