Why is H2S is acidic than H2Te?

1.	Why is H2S is acidic than H2Te?
Answer» In H₂Te the size of Central Te is more than that of sulphur in H₂S and therefore, the distance between the central atom and hydrogenTe-H is more than that of S-H.As a result a large Bond length and bond dissociation enthalpy of,Te-H is less than that of S-H and bond cleavage of Te-H bond is easy therefore H₂Te is more acidic than H₂S.

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