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# Among the following molecules,the dipole moment is the highest for

$\begin{array}{1 1}(a)\;NF_3 &(b)\; NH_3\\(c)\;CO_2&(d)\;BF_3\end{array}$

The dipolemoment of $NF_3$ is 0.23
The dipolemoment of $NH_3$ is 1.47
The dipolemoment of $BF_3$ is 0
The dipolemoment of $CO_2$ is 0
Hence (b) is the correct answer.