Why ammonia is a good complexing agent?

(i) why are halogens strong oxidising agents ? (ii) Why oxygen shows anomalous behaviour from rest of members of its family ? (iii) Ammonia acts as a good complexing agent. Explain.

Give one reaction in which ammonia acts as a reducing agent .

Give reason for the following : Mn^(3+) is a good oxidising agent.

Why ammonia is a stronger base than phosphine?

A solution of sodium metal in liquid ammonia acts as a strong reducing agent due to the presence of

Why is Agrobacterium tumefaciens is a good cloning vector ? Explain.