Question

Which of the following statements is true:

(a) Ammonia is the weakest reducing agent and the strongest base among Group 15 hydrides.

(b) Ammonia is the strongest reducing agent as well as the strongest base among Group 15 hydrides.

(c) Ammonia is the strongest reducing agent as well as the weakest base among Group 15

(d) Ammonia is the strongest reducing agent and the weakest base among Group 15 hydrides.

Answer 1

Answer is (a) Ammonia is the weakest reducing agent and the strongest base among Group 15 hydrides.

The reducing character of hydrides increases down the group due to decrease in bond dissociation enthalpy.