Question

$N{H}_3$ and $N{F}_3$, both the molecules have pyramidal shape with a lone pair of electrons on nitrogen atom. Why does the dipole moment of $N{H}_3$ is greater than that of $N{F}_3$ ?

• A. Because $F$ is more electronegative than $N$-atom
• B. Because in $N{F}_3$ the orbital dipole is in the direction opposite to the resultant dipole moment of the three N-F bonds
• C. Because in $N{H}_3$ the orbital dipole is in the direction same to the resultant dipole moment of the three $N-H$ bonds
• D. All of the above

Answer 1

Answer: (D)

Correct answer is (d) All of the above