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The bond angles in NH(4)^(+) and CH(4) a...

The bond angles in `NH_(4)^(+)` and `CH_(4)` are same but `NH_(3)` has different bond angle. Why ?

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To understand why the bond angles in \( NH_4^+ \) and \( CH_4 \) are the same while \( NH_3 \) has a different bond angle, we can analyze the molecular geometry and the influence of lone pairs on bond angles. ### Step-by-step Solution: 1. **Identify the Molecular Geometry of \( NH_4^+ \)**: - \( NH_4^+ \) has four hydrogen atoms bonded to a central nitrogen atom. - There are no lone pairs on the nitrogen atom, only bond pairs. - According to VSEPR (Valence Shell Electron Pair Repulsion) theory, the geometry is tetrahedral. ...
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