Which statement is true regarding methane and ammonia?

1. methane molecules show hydrogen bonding

2. ammonia molecules show hydrogen bonding

3. methane has stronger hydrogen bonding than ammonia

4. both the compounds do not show hydrogen bonding

5. both the compounds have strong hydrogen bonding

Answer number 2 is the correct answer. Methane has no unbonded electron pairs to interact with the hydrogen, but ammonia does. Every atom has an outer shell that contains electrons. The outer shell is called the valence shell that has valence electrons. These electrons form covalent bonds with other electrons.