Oxygen is more electronegative, than sulphur, yet H_2S is acidic … - Vidyadip

MCQ

Oxygen is more electronegative, than sulphur, yet $H_2S$ is acidic in nature while $H_2O$ is neutral. because

A
$H_2S$ molecule are associated due to inter $-H$ bonding
B
$H_2O$ has higher boiling point than $H_2S$
✓
$H-S$ bond is weaker than $O-H$ bond
D
$H_2S$ is gas at ordinary temperature while $H_2O$ is liquid

✓

Answer

Correct option: C.

$H-S$ bond is weaker than $O-H$ bond

c
$H - S$ bond is weaker than $H - O$ bond due to large size of $S$. Moreover due to high electronegativity of oxygen it forms hydrogen bond in $H _2 O$.

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