H2S is less acidic than H2Te, why? – InterviewSolution

1.	H2S is less acidic than H2Te, why?
Answer» Sulphur is more electronegative than Tellurium. Bond energy of S-H in H₂S is (347 kJ mol^-1) more than the bond energy of Te-H (238 kJ mol^-1). Hence H₂Te dissociates more giving H⁺ (or H₃O⁺) than H₂S in the solution. Therefore H₂S is less acidic than H₂Te.

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