Fertiliser Technology - Practice Test

(A) Sulphuric

(B) Hydrochloric

(C) Either A or B

(D) Neither A nor B

(C) Either A or B

(A) Exothermic

(B) Endothermic

(C) Autocatalytic

(D) None of these

(A) Exothermic

(A) Having about 40% N 2

(B) Not hygroscopic

(C) Not prone to explosive thermal decomposition

(D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

(D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

(A) By fractionation of liquified air

(B) By dissociating oxides of nitrogen

(C) From coal gas (coke oven gas)

(D) From producer gas

(A) By fractionation of liquified air

(A) Can use only high grade phosphate rock

(B) Is used less frequently

(C) Produces a valuable by-product called gypsum

(D) Is weak acid process

(B) Is used less frequently

Fertiliser Technology - Study Mode