Question

Q2) which of the following has the highest
dipole moment?*
O
NH3
O
PH
O O
SbH3
O
AsH3​

Answer 1

C(Cl)4 is a symmetrical compound so its dipole moment will be zero. Hence, C(Cl)4 is non-polar. Hence, C(H)2(Cl)2 has the highest dipole moment amongst the given options.

Answer 2

Due to greater electronegativity of nitrogen, dipole moment for NH3 is greater.