The dipole moment of NF_3 is less than that of NH_3 because:

JEE Main Chemistry question

The dipole moment of is less than that of because:

(A) is more reactive than
(B) forms associated molecules
(C)The resultant of the bond polarity is less
(D)The resultant of the individual bond polarities is opposed by the polarity of the lone pairCorrect

Answer: (D)

Solution

In , the highly electronegative atoms pull bonding electron density away from (bond dipoles point from towards ), opposite in direction to the lone-pair dipole (which points away from the bonds, out along the lone pair). These

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Question ID VK-146157