the number of nonbonding electrons exceeds the number of bonding electrons in the Lewis structure of which of the following molecules?

HCN

NH3

H2O

more than one correct response

no correct response

if more than one correct response please show all correct responses.

thanks

2 answers

Why don't you draw the structures and count the electrons? I can't draw the structures on this forum but you can find them on Google.
no correct response