Match the following columns:

Column I (Fertilisers)	Column II (N Content %)
a. Anhydrous ammonia	1. 16
b. Ammonium phosphate	2. 82
c. Di-ammonium phosphate	3. 18 - 21
d. Ammonium chloride	4. 25

Solution(By Examveda Team)

Ammonium ammonia is an efficient and widely used source of nitrogen fertilizer. It is relatively easy to apply and is readily available to producers. It has the highest content of Nitrogen which is about 82%.

Ammonium phosphate is a widely used source of phosphorus and nitrogen. It’s made of two constituents common in the fertilizer industry and contains the most phosphorus of any common solid fertilizer. Nitrogen content is 16%.

Di-ammonium phosphate is the most widely used Phosphorous fertilizer. But it also contains nitrogen and its N content is 18 - 21%.

Ammonium chloride is medium-strength nitrogen fertilizer. It contains about 25% nitrogen.