WBJEE · Chemistry · Classification of Elements and Periodicity in Properties
The bond angle in \(\mathrm{NF}_{3}\left(102.3^{\circ}\right)\) is smaller than \(\mathrm{NH}_{3}\left(107.2^{\circ}\right) .\) This is because of
- A large size of F compared to H
- B large size of N compared to F
- C opposite polarity of \(\mathrm{N}\) in the two molecules
- D small size of \(\mathrm{H}\) compared to \(\mathrm{N}\)
Answer & Solution
Correct Answer
(C) opposite polarity of \(\mathrm{N}\) in the two molecules
Step-by-step Solution
Detailed explanation
In \(\mathrm{NF}_{3}\), \(\mathrm{N}\) is less electronegative as compared to F but in \(\mathrm{NH}_{3}\), it is more electronegative than \(\mathrm{H}\). And in case of same central atom. as the electronegativity of other atoms increases, bond angle decreases, Thus, bond angle…
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