Fertiliser Technology - Section 1 (2)

Directions to Solve

Fertiliser Technology - Section 1

Fertilizer technology is a field and there are many problematic
MCQs available in this section which are related to this field. You can solve to test your aptitude
level in this field.

9.

Reaction of orthophosphoric acid with soda ash produces

A.	sodium tripolyphosphate (STPP)
B.	tricresyl phosphate
C.	tributyl phosphate
D.	nitrophosphate

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

10.

Prilling tower is found in the flowsheet for the manufacture of

A.	ammonia
B.	urea
C.	superphosphate
D.	triple superphosphate

Answer: Option B

Explanation:

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11.

Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N₂ & H₂ is high. The presence of promoter along with the catalyst helps in __________ of the catalyst.

A.	stabilisation
B.	increasing the effectiveness
C.	improving the strength & heat resistance
D.	all a, b & c

Answer: Option D

Explanation:

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12.

Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the __________ process.

A.	Haber's
B.	Stengel
C.	Le-chatlier's
D.	Du-pont's

Answer: Option B

Explanation:

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13.

Heating of orthophosphoric acid to 250°C produces

A.	metaphosphoric acid
B.	pyrophosphoric acid
C.	no change in it
D.	none of these

Answer: Option B

Explanation:

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14.

H₃PO₄ is the chemical formula of __________ phosphoric acid.

A.	pyro
B.	ortho
C.	meta
D.	none of these

Answer: Option B

Explanation:

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15.

P₂O₅ content in triple superphosphate is about __________ percent.

A.	42-50
B.	15-20
C.	85-90
D.	70-75

Answer: Option A

Explanation:

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16.

In calcium ammonium nitrate (CAN) fertil-ser

A.	nitrate nitrogen is quick acting
B.	ammoniacal nitrogen is quick acting
C.	nitrate nitrogen is slower acting
D.	none of these

Answer: Option A

Explanation:

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