Category: Fertilizer Technology

A. Reaction of NH3 with HNO3 to produce (NH4)2NO3 is endothermic
B. With increase in NH3/CO2 ratio, urea yield decreases for a given temperature, pressure and
total feed rate
C. Biuret (an intermediate during urea manufacture) is toxic to seeds and animals
D. Both B. and C.

A. Thermal cracking
B. Steam reforming
C. Partial oxidation
D. Hydrogenation

A. Counteract burning
B. Avoid caking & hardening
C. Produce bulk
D. Increase its solubility

A. During the early stage of growth to promote development of stem and leaves
B. For accelerating fruit formation in later stage of growth
C. To lessen the effect of excessive potash application
D. None of these

A. Ammonium phosphate
B. Flour apatite
C. Calcium fluoride
D. Calcium phosphate

A. 4
B. 22
C. 58
D. 84

A. Presence of an inert atmosphere
B. Presence of a reducing atmosphere
C. Absence of air
D. Presence of an oxidising atmosphere

A. Chloride
B. Sulphate
C. Nitrate
D. None of these

A. Coke oven
B. Producer
C. Natural
D. Coal

A. Hydrogenated
B. Liquefied
C. Gasified
D. Dehydrogenated