FERTILISER TECHNOLOGY QUIZ

Electric process as compared to wet process (for the manufacture of phosphoric acid)

Is used less frequently

Is weak acid process

Can use only high grade phosphate rock

Produces a valuable by-product called gypsum

TRUE ANSWER : ?
YOUR ANSWER : ?

Catalyst used in the manufacture of NH₃ by Haber's process is finely divided

Vanadium pentoxide

Iron

Nickel

Alumina

TRUE ANSWER : ?
YOUR ANSWER : ?

In natural gas, the C/H ratio (by weight) varies in the range of

43894

15-17

44053

20-25

TRUE ANSWER : ?
YOUR ANSWER : ?

In calcium ammonium nitrate (CAN) fertil-ser

Ammoniacal nitrogen is quick acting

Nitrate nitrogen is slower acting

Nitrate nitrogen is quick acting

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The essential ingradient of all the synthesis gas is

O₂

CO₂

H₂

N₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C.

1400-1450

500-750

250-300

950-1050

TRUE ANSWER : ?
YOUR ANSWER : ?

In the manufacture of urea, the intermediate chemical formed is

Ammonium carbonate

Ammonium carbamate

None of these

Biuret

TRUE ANSWER : ?
YOUR ANSWER : ?

Phosphatic fertilisers

None of these

Lessen the effect of excessive nitrogen application

Accelerate fruit formation in later stages of growth

Are useful during early stage of the plant growth

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Steam reforming of naphtha

Natural gas cracking

Cryogenic removal of H₂ from coke oven gas

Electrolysis of water

TRUE ANSWER : ?
YOUR ANSWER : ?

Reaction of __________ acid with phosphate rock produces superphosphates.

Hydrochloric

Nitric

Phosphoric

Sulphuric

TRUE ANSWER : ?
YOUR ANSWER : ?

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