Bonding8

Correct order of Dipole Moment?

CH4
NF3
NH3
H20

4 Answers

106
Asish Mahapatra ·

H2O > NH3 > NF3 > CH4=0

H2O has max lone pairs so dipole moment max

1
D Queen ·

Yeah but how will we will decide NH3 vs NF3 vs CH4 Please answer

106
Asish Mahapatra ·

CH4 is symmetrical so zero

In NH3 the N-H and lone pair are in same direction
while in NF3 the N-F are in one direction while lone pair is in other direction

So, NH3>NF3

24
eureka123 ·

for NH3 and NF3 u cna also compare htis way...

F is nearer to N in periodic table...so they will have approx same EN..so dipole moment wont be that high
whereas H is located far from N..so their EN's will differ by some considerable amt...so dipole moment is also appreciable..
so NH3>NF3

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