Question

Out of $C{H}_{2}C{l}_2,C{H}_4,CC{l}_4,H_{2}O,CHC{l}_3,d-$dichlorobenzene, $o$-cresol, $p$-xylene, $SC{l}_2,B{F}_3,IBr$ and $C{H}_{2}O$, non zero value of dipole moment are:

Answer 1

The compounds $C{H}_{2}C{l}_2,H_{2}O,CHC{l}_3,o$-cresol, $SC{l}_2,IBr$ and $C{H}_{2}O$ have non zero value of dipole moment.
Thus total seven compounds have non zero dipole moment. In these molecules, the individual bond dipoles do not cancel each other. Hence, the net dipole moment of the molecule is non zero.
The compounds $C{H}_4$, $CC{l}_4$, p-dichlorobenzene, p-xylene and $B{F}_3$ have zero dipole moment as the individual bond dipoles cancel each other.