FERTILISER TECHNOLOGY QUIZ

Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.

10

25

50

80

TRUE ANSWER : ?
YOUR ANSWER : ?

Conditioners like finely divided peat are added to the fertiliser to

Increase its solubility

Avoid caking & hardening

Produce bulk

Counteract burning

TRUE ANSWER : ?
YOUR ANSWER : ?

H₄P₂O₇ is the chemical formula of __________ phosphoric acid.

Meta

Pyro

None of these

Ortho

TRUE ANSWER : ?
YOUR ANSWER : ?

Both white phosphorous as well as red phosphorous

All of these

Are soluble in CS₂

Reacts with hot caustic soda solution to give phosphine

Burns when heated in air

TRUE ANSWER : ?
YOUR ANSWER : ?

Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of

Phosphoric acid

Superphosphate

Triple superphosphate

Phosphorous

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?

Cryogenic removal of H₂ from coke oven gas

Electrolysis of water

Steam reforming of naphtha

Natural gas cracking

TRUE ANSWER : ?
YOUR ANSWER : ?

Base suspension fertiliser essentially contains

43% K₂O and 43% P₂O₅

13% N₂ and 43% P₂O₅

43% N₂ and 13% P₂O₅

43% N₂ and 13% K₂O

TRUE ANSWER : ?
YOUR ANSWER : ?

In an ammonia plant, the purge off is essential to

Remove uncondensed ammonia vapour

Remove excess poisonous gases

Maintain inert gas concentration within a limit

Maintain H₂ : N₂ ratio at 3 :1

TRUE ANSWER : ?
YOUR ANSWER : ?

Phosphatic fertiliser is graded based on its __________ content.

H₃PO₄

P₂O₃

P₂O₅

PCl5

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a natural inorganic fertiliser?

Oilcake

Gobar mannure

Chile salt petre

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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