Q.
Acidity of diprotic acids in aqueous solutions increases in the order
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a
H2 S
b
H2Se
c
H2Te
d
H2Se
answer is A.
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Detailed Solution
As the atomic size increases down the group, the bond length increases and the bond strength decreases and the cleavage of E-H bond becomes easier thus, more will be the acidity. Thus, the correct order is :H2 S
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