Kaplan FL 3 C/P

[avalonisland888]

I understand why D is the right answer, but why can't C be correct? I've never seen a positive charge on the Oxygen, so I didn't think this was possible.

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[JimKimSlim]

The positive charge is indeed possible. I think you’re confusing C-O with C=O. It is rare to find a positive charge on the oxygen atom of C-O, but fairly common on that of C=O. Just off of my head, there’s the acid catalysis of carbonyl, whose intermediate compound looks very similar to what happens to the oxygen on choice C.

 

[Goofy Goober]

I understand why D is the right answer, but why can't C be correct? I've never seen a positive charge on the Oxygen, so I didn't think this was possible.
View attachment 314553

NO has 11 valence electrons. All answers including C but not D have 11 valence electrons. D only has 10.