Choose those statements that are true about the two best resonance structures for the molecule CNH?

Question

a) There are a total of ten valence electrons in both of these resonance structures

b) The best resonance structure has a single bond between the carbon and nitrogen atoms

c) Neither resonance structure has a single bond between the nitrogen and hydrogen atom.

d) The best resonance structure has a triple bond between the carbon and nitrogen atoms

e) The best resonance structure has a negative charge on nitrogen

Answer 1

The answer is (a).
Reasons?
(a) Certainly True.
(b) No way to be a single bond between the carbon and nitrogen atoms
(c) There must be a single bond between the nitrogen and hydrogen atom
(d) and (e) may or may not be true--it is a judgment call. (d) is probably correct.