# What is the relative order of bond polarity, with respect to N-H, O-H, F-H, and P-H?

${\underbrace{H - P , H - N , H - O , H - F}}_{\rightarrow}$
$\text{Order of increasing bond polarity......}$
And how to assess this quantitatively? Well, examine the Pauling electronegativities of H(2.02); P(2.19); N(3.04); O(3.44); F(3.98)
Clearly, $H - F$ should give rise to the most polar bond.