Question
Write the bond angles in CH4, NH3 and H2O molecules and give reason.

Answer

CH4 has bond angle 109.5° because it has 4bp and no lone pair. NH3 has bond angle $\because$ 107°, it has 3bp and 1 lp.
H2O has bond angle 104.59, $\because$ it has 2 bp and 1lp.

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