Question

Although F is more electronegative than H, the resultant dipole moment of $NH_{3}$is much more than that of $NF_{3}.$ It can be explained as

• A. The lone pair of nitrogen opposes the dipole moment of $NH_{3}$while it is added to the dipole moment of $NH_{3}$
• B. All the diploes of $NF_{3}$are in same direction
• C. All the dipoles of $NH_{3}$are in opposite direction
• D. $NH_{3}$has a regular geometry while $NF_{3}$has irregular geometry which makes dipole moment of $NH_{3}$more than $NF_{3}$.

Answer 1

Answer: (A)

The lone pair of nitrogen opposes the dipole moment of $NH_{3}$while it is added to the dipole moment of $NH_{3}$

Answer 2

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