Topscore Test 1 #77, Help!!!

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celina08

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According to VSEPR, which of the following is predicated to be non-polar?
A. benzene ring
B. ethylene
C. BF3
D. NH3
E. HCN

I think the answer is C but the answer is D....
 
Yeah that doesnt make sense to me. The B in BF3 doesnt have a lone pair so its non polar and NH3 the N has a lone pair on it so its polar.
 
Ohh never mind then the answer is d since NH3 is actually trigonal pyramidal
 
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