MCQ
Which of the following carbon$-$halogen bond is extremely polar though nonionic among given alkyl halides?
- ✓$C−F$
- B$\text{C−Br}$
- C$\text{C−Cl}$
- D$C−I$
✓
Answer
Correct option: A.
$C−F$
$C−F$ bond is extremely polar because Flourine is most Electronegative atom $(E.N = 4.0)$ so the $E.N$ difference is more for carbon and Flourine.
Polarity order$:\ \ce{C−F>C−Br>C−Cl>C−I}.$
Polarity order$:\ \ce{C−F>C−Br>C−Cl>C−I}.$
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