Chemical Bonding and Molecular Structure - Result Question 34
####35. Which of the following bonds will be most polar?
[1992]
(a) $N-Cl$
(b) $O-F$
(c) $N-F$
(d) $N-N$
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Solution:
- (c) As the electronegativity difference between $N$ and $F$ is maximum hence, this bond is most polar.
Polarity of the bond depends upon the electronegativity difference of the two atoms forming the bond. Greater the electronegativity difference, more is the polarity of the bond.
\begin{tabular}{cccc} $N-Cl$ & $O-F$ & $N-F$ & $N-N$ \\ $3.0-3.0$ & $3.5-4.0$ & $3.0-4.0$ & $3.0-3.0$ \end{tabular}
