Which formula represents an unsaturated hydrocarbon? Picture I
How many pairs of electrons are shared between the two nitrogen atoms? Picture II

I NEED EXPLANATION FOR BOTH QUESTIONS, PLEASE HELP ME! :)


Which Formula Represents An Unsaturated Hydrocarbon Picture IHow Many Pairs Of Electrons Are Shared Between The Two Nitrogen Atoms Picture III NEED EXPLANATION class=
Which Formula Represents An Unsaturated Hydrocarbon Picture IHow Many Pairs Of Electrons Are Shared Between The Two Nitrogen Atoms Picture III NEED EXPLANATION class=