FERTILISER TECHNOLOGY QUIZ

Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.

Endothermic

Autocatalytic

Catalytic

Exothermic

TRUE ANSWER : ?
YOUR ANSWER : ?

Hydrogen content of coke oven gas is __________ percent.

58

22

84

4

TRUE ANSWER : ?
YOUR ANSWER : ?

Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because

It is hygroscopic and explosive in nature

It is highly acidic in nature

Its nitrogen content is very less

It is a liquid at room temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following gasifiers can be attached to coal based fertiliser plants?

Gasifier working at 20 atm

Kopper-Totzek gasifier

Lurgi (high pressure) gasifier

Gasifier working at 40 atm

TRUE ANSWER : ?
YOUR ANSWER : ?

Chemical formula of metaphosphoric acid is

H₄P₂O₇

Same as that of pyrophosphoric acid

HPO₃

H₃PO₄

TRUE ANSWER : ?
YOUR ANSWER : ?

Multistage operation (as in the case of catalytic oxidation of SO₂) is not carried out for NH₃ synthesis, because of

High cost of the high pressure vessel used for the reactor

Comparatively higher pressure drop

Higher pumping cost

Chances of entrainment and disturbance of catalyst bed

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ is the most suitable fertiliser for paddy.

Urea

Superphosphate

Ammonium sulphate

Potassium nitrate

TRUE ANSWER : ?
YOUR ANSWER : ?

Urea is a better fertilizer than ammonium sulphate, because

Nitrogen content is higher

It is not poisonous

It is easy to manufacture

It is cheaper

TRUE ANSWER : ?
YOUR ANSWER : ?

Phosphatic fertiliser is graded based on its __________ content.

H₃PO₄

PCl5

P₂O₃

P₂O₅

TRUE ANSWER : ?
YOUR ANSWER : ?

Base suspension fertiliser essentially contains

13% N₂ and 43% P₂O₅

43% N₂ and 13% K₂O

43% N₂ and 13% P₂O₅

43% K₂O and 43% P₂O₅

TRUE ANSWER : ?
YOUR ANSWER : ?

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