FERTILISER TECHNOLOGY QUIZ

Gas based fertiliser plants use

Natural gas as a source of hydrogen

Natural gas as heating medium

Coal gas as a source of hydrogen

Coal gas as heating medium

TRUE ANSWER : ?
YOUR ANSWER : ?

pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant.

44084

44178

44020

43926

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is the best fertiliser for paddy?

Superphosphate

Ammonium sulphate

Nitro-phosphate

Potassium nitrate

TRUE ANSWER : ?
YOUR ANSWER : ?

5-10-5 fertilisers mean that they contain

Only 5 to 10% active fertiliser constituents

5 to 10% filler & carrier of soil conditioners

None of these

5, 10, 5% respectively of N₂, P₂O₅ and K₂O

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils?

CAN

Urea

Calcium cyanamide

Ammonium sulphate

TRUE ANSWER : ?
YOUR ANSWER : ?

C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about

20

2

13

6

TRUE ANSWER : ?
YOUR ANSWER : ?

The essential ingradient of all the synthesis gas is

O₂

CO₂

N₂

H₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Raw materials for urea production are

CO₂, H₂ and N₂

NH₃ and CO

CO₂ and N₂

HNO₃ and CaCO₃

TRUE ANSWER : ?
YOUR ANSWER : ?

P₂O₅ content in superphosphate is about __________ percent.

85-90

15-20

65-70

30-35

TRUE ANSWER : ?
YOUR ANSWER : ?

Chemical formula of metaphosphoric acid is

H₄P₂O₇

H₃PO₄

Same as that of pyrophosphoric acid

HPO₃

TRUE ANSWER : ?
YOUR ANSWER : ?

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