# NEET Chemistry The p-Block Elements (XII) Questions Solved

(a) How is ammonia prepared on a large scale ? Name the process and mention the optimum conditions for the production of ammonia by this process.

(b) Assign reasons for the following :

(i) ${H}_{2}S$ is more acidic than ${H}_{2}O$.

(ii) $N{H}_{3}$ is more basic than $P{H}_{3}$.

(iii) Sulphur has a greater tendency for catenation than oxygen.

Concept Videos :-

#2 | 15th Group: Properties: II
#3 | 15th Group: Ammonia

Concept Questions :-

group 15 ,preparation and properties