Question

Which of the two is more basic methylamine or NH3​

Answer 1

Methyl amine is a stronger base than ammonia because +I effect of methyl group increases electron density on N making it more basic than .

Answer 2

Methylamine is the correct answer.

1. Basic character is defined by the ability to donate electrons. Between the given two options, methylamine has -CH3 group that is responsible for inductive effect or +I effect.
2. The effect results in donation of electrons and hence increases electron density over the Nitrogen atom.
3. The methyl group is absent in ammonia and hence does not show such characteristic.
4. Thus, methylamine is more basic than ammonia.