FERTILISER TECHNOLOGY QUIZ

Nitrolime is

Calcium nitrate

Calcium ammonium nitrate

A mixture of nitric acid and lime

A mixture of ammonium nitrate and calcium nitrate

TRUE ANSWER : ?
YOUR ANSWER : ?

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

50

65

5

20

TRUE ANSWER : ?
YOUR ANSWER : ?

Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at

Rourkela (under SAIL)

Bokaro (under SAIL)

Sindri (under FCI)

Baroda (under G.S.F.C.)

TRUE ANSWER : ?
YOUR ANSWER : ?

Reaction of cresylic acid with __________ produces tricresyl phosphate.

Phosphorous oxychloride

Ammonium phosphate

Calcium phosphate

Phosphorous pentoxide

TRUE ANSWER : ?
YOUR ANSWER : ?

Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550°C), because at low temperature

Rate of reaction is very low

Very high pressure is required resulting in costly pressure vessel

None of these

Space velocity of gas is very low resulting in decreased conversion

TRUE ANSWER : ?
YOUR ANSWER : ?

H₃PO₄ is the chemical formula of __________ phosphoric acid.

None of these

Which of the following is not a mixed fertiliser?

Nitrophosphate

Calcium ammonium nitrate (CAN)

Ammonium phosphate

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Iron is not used alone as a catalyst in ammonia synthesis, because

It decomposes ammonia

It gets oxidised above 500°C

None of these

Its activity declines rapidly, if heated to above 520°C

TRUE ANSWER : ?
YOUR ANSWER : ?

Ammonia synthesis gas is produced from fuel oil by

Hydrocracking

Partial oxidation

Steam reforming

Hydrogenation

TRUE ANSWER : ?
YOUR ANSWER : ?

Phosphatic fertilisers

Are useful during early stage of the plant growth

Accelerate fruit formation in later stages of growth

None of these

Lessen the effect of excessive nitrogen application

TRUE ANSWER : ?
YOUR ANSWER : ?