Question

Hydrogen bonds can be found between molecules of which substance?
Responses

H2
uppercase H subscript 2 end subscript

NH3
uppercase N H subscript 3 end subscript

CH4
uppercase C H subscript 4 end subscript

HI

Answer 1

NH3

Ammonia molecules have N–H bonds and a lone pair on N, so they can form hydrogen bonds with each other. H2 and CH4 have no highly electronegative atom bonded to H, and HI does not form hydrogen bonds (I is too large/poor an acceptor).