Topscore Test 1 #77, Help!!!

[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....

 

[jmukid]

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.

 

[lol105]

The question is asking for a non PLANAR.

 

[jmukid]

Ohh never mind then the answer is d since NH3 is actually trigonal pyramidal

 

[celina08]

The question is asking for a non PLANAR.

lol, I checked the question it its no Planar...need to read questions more carefully Thanks