FERTILISER TECHNOLOGY QUIZ

Ammonium nitrate (a fertiliser) is coated with limestone powder to

Cut down its production cost

Increase its nitrogen content

Avoid the risk of explosion

Add extra nutrient as fertiliser

TRUE ANSWER : ?
YOUR ANSWER : ?

Reaction of orthophosphoric acid with soda ash produces

Tricresyl phosphate

Nitrophosphate

Tributyl phosphate

Sodium tripolyphosphate (STPP)

TRUE ANSWER : ?
YOUR ANSWER : ?

Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by

Cryogenic operations (low temperature cooling)

None of these

Absorption (using ethanolamine or pyragalloll solution)

Adsorption on palladium

TRUE ANSWER : ?
YOUR ANSWER : ?

Dehydration of ammonium carbamate produces

Ammonia water

None of these

Biuret

Urea

TRUE ANSWER : ?
YOUR ANSWER : ?

The essential ingradient of all the synthesis gas is

N₂

O₂

H₂

CO₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.

75-80

52-54

25-28

> 98

TRUE ANSWER : ?
YOUR ANSWER : ?

Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent.

50

65

20

5

TRUE ANSWER : ?
YOUR ANSWER : ?

Reaction of __________ acid with phosphate rock produces superphosphates.

Phosphoric

Sulphuric

Nitric

Hydrochloric

TRUE ANSWER : ?
YOUR ANSWER : ?

Reaction of dilute sulphuric acid with phosphate rock produces

Gypsum

Phosphoric acid

Superphosphate

Triple superphosphate

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following does not come under the category of'primary nutrient' for plant growth?

Nitrogen

Sulphur

Potassium

Phosphorous

TRUE ANSWER : ?
YOUR ANSWER : ?

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