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Correct order of Dipole Moment?

CH4
NF3
NH3
H20

#Chemistry #Inorganic Chemistry

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106

Asish Mahapatra ·2009-11-16 22:56:25

H2O > NH3 > NF3 > CH4=0

H2O has max lone pairs so dipole moment max

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D Queen ·2009-11-16 22:58:30

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

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106

Asish Mahapatra ·2009-11-16 23:01:31

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

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eureka123 ·2009-11-16 23:54:21

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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