Although F is more electronegative than H , then
resultant dipole moment of `NH_(3)` is much moe than
that of ` NF_(3)` . It can be explained as

Options

A. the lone pair of nitrogen opposes the dipole moment of ` NF_(3)` while it is added to the dipole moment of ` NH_(3)`
B. all the dipole of ` NF_(3)` are in same direction
C. all the dipoles of ` NH_(3)` are in opposite direction
D. `NH_(3)` has regular geometry while ` NF_(3)` has irregular geometry which makes dipole moment of ` NH_(3)` more than ` NF_(3)`

Answer

a

Explanation