Question

The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of NH₃ (1.5 D) is larger than that of NF₃ (0.2D). This is because
(a) in NH₃ the atomic dipole and bond dipole are in the same direction whereas in NF₃ these are in opposite directions
(b) in NH₃ as well as NF₃ the atomic dipole and bond dipole are in opposite directions
(c) in NH₃ the atomic dipole and bond dipole are in the opposite directions whereas in NF₃ these are in the same direction
(d) in NH₃ as well as in NF₃ the atomic dipole and bond dipole are in the same direction

Answer 1

(a) In NH3 the atomic dipole and bond dipole are in same direction whereas in NF3 these are in opposite direction(so they cancel each other out)

Answer 2

Hello Friend

Ans

Option.B

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