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Out of H(2)O " and " H(2)S, which one ha...

Out of `H_(2)O " and " H_(2)S`, which one has higher bond angle and why ?

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The bond angle in `H_(2)O` molecule `(104.5^(@))` is higher than the bond angle in the molecule of `H_(2)S. (92^(@))`. This is on account of the reason that the oxygen atom is more electronegative (3.5) as compared to sulphur (2.5). The shared electron pairs are drawn closer to the oxygen atom in `H_(2)O` as compared to sulphur atom in `H_(2)S`. The bond pair-bond pair repulsion around oxygen is more than around sulphur. Therefore, bond angle in `H_(2)O` molecule is more as compared to bond angle in the molecule of `H_(2)S`.
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