Which of the following statements regarding N | vedclass

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(C) Both $NH_3$ and $NF_3$ have a pyramidal geometry due to the presence of one lone pair on the central nitrogen atom and $sp^3$ hybridization.In $NH

Vedclass · Accepted Answer

The resultant dipole moment of $NH_3$ is $4.90 	imes 10^{-30} \ C \ m$ and that of $NF_3$ is $0.80 	imes 10^{-30} \ C \ m$.

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(C) Both $NH_3$ and $NF_3$ have a pyramidal geometry due to the presence of one lone pair on the central nitrogen atom and $sp^3$ hybridization.In $NH_3$,the electronegativity of $N$ $(3.0)$ is greater than $H$ $(2.1)$,so the bond dipoles point towards $N$. The lone pair dipole also points in the same direction,leading to a large resultant dipole moment of $4.90 	imes 10^{-30} \ C \ m$.In $NF_3$,the electronegativity of $F$ $(4.0)$ is greater than $N$ $(3.0)$,so the bond dipoles point away from $N$. The lone pair dipole points towards $N$. These oppose each other,resulting in a smaller net dipole moment of $0.80 	imes 10^{-30} \ C \ m$.Therefore,statement $C$ is correct.

Which of the following statements regarding $NH_3$ and $NF_3$ is correct?

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