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Question: Answered & Verified by Expert
Acidity of diprotic acids in aqueous solutions increases in the order:
Chemistryp Block Elements (Group 15, 16, 17 & 18)NEETNEET 2014
Options:
  • A H2S<H2Se<H2Te
  • B H2Se<H2S<H2Te
  • C H2Te<H2S<H2Se
  • D H2Se< H2Te<H2S
Solution:
1686 Upvotes Verified Answer
The correct answer is: H2S<H2Se<H2Te

Acidic strength for a particular group is inversely proportional to the bond energy and directly proportional to the bond length.

H2O<H2S<H2Se<H2Te (acidic strength)

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