Although geometries of `NH_3` and `H_2 O` molecules are distorted tetrahedral, bond angle in water is less than that of ammonia. Discuss.

Explanation

To understand why the bond angle in water (H₂O) is less than that in ammonia (NH₃), despite both having distorted tetrahedral geometries, we can analyze the molecular structures and the effects of lone pairs on bond angles.

### Step-by-Step Solution:

1. **Draw the Lewis Structures**:
- For **NH₃** (Ammonia):
- Nitrogen (N) is the central atom with three hydrogen (H) atoms bonded to it.
- There is one lone pair of electrons on the nitrogen.
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