Resolved Question

Why H2O has bond angle 105 but H2S has only 91.5?

by joeyeehu...

Best Answer - Chosen by Asker

Both oxygen and sulphur are in Group 16.
There are two lone pair each in H2O as well as in H2S.
But oxygen is more electronegative than sulphur.

Hence, the bonding pair of electrons in O-H bonds are drawn closer to O.
These electrons experience greater repulsive force compared to that in H2S.
Therefore, the HOH angle is greater than HSH angle.


Asker's Comment:
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