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Grade: 12

                        

which of the following has net dipole moment a.CCl4 b.C2H2 c.BF3 d.NH3

6 years ago

Answers : (2)

raj kumar
33 Points
							a,c,d has net dipole moment
						
6 years ago
Aarti Gupta
askIITians Faculty
300 Points
							Between
all these molecules NH3 will have net dipole moment as it is pyramidal in shape
with 1 lone pair of e- on the top of the pyramid,and 3-H atoms going down.The
bond dipoles of three N-H in this molecule do not cancel each other & thus
net dipole moment is of 1.49D.Besides this the orbital dipole due to lone pair
is in the same direction as the resultant dipole moment of 3 N-H bonds and thus
adds on the resultant of three.
Thanks & regards
Aarti Gupta
askiitians Faculty
6 years ago
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