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Fertiliser Technology
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Question
H
4
P
2
O
7
is the chemical formula of __________ phosphoric acid.
Options
A. pyro
B. ortho
C. meta
D. none of these
Correct Answer
pyro
Fertiliser Technology problems
Search Results
1. Triple superphosphate is made by reacting phosphate rock with __________ acid.
Options
A. phosphoric
B. nitric
C. sulphuric
D. hydrochloric
Show Answer
Scratch Pad
Discuss
Correct Answer: phosphoric
2. Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.
Options
A. 10
B. 25
C. 50
D. 80
Show Answer
Scratch Pad
Discuss
Correct Answer: 25
3. Chemical formula of biuret is
Options
A. NH
2
.CO.NH
2
B. NH
3
.COO.NH
3
C. NH
2
CONHCONH
2
D. NH
4
COONH
2
Show Answer
Scratch Pad
Discuss
Correct Answer: NH
2
CONHCONH
2
4. The optimum size of the ammonia plant is __________ tons/day.
Options
A. 10
B. 100
C. 1000
D. 1000C.
Show Answer
Scratch Pad
Discuss
Correct Answer: 1000
5. Multistage operation (as in the case of catalytic oxidation of SO
2
) is not carried out for NH
3
synthesis, because of
Options
A. comparatively higher pressure drop.
B. high cost of the high pressure vessel used for the reactor.
C. higher pumping cost.
D. chances of entrainment and disturbance of catalyst bed.
Show Answer
Scratch Pad
Discuss
Correct Answer: high cost of the high pressure vessel used for the reactor.
6. Rock phosphate constitutes mainly of
Options
A. fluorapatite
B. di-calcium phosphate
C. mono-calcium phosphate
D. di-ammonium phosphate
Show Answer
Scratch Pad
Discuss
Correct Answer: fluorapatite
7. Nitrogen content of urea is about __________ percent.
Options
A. 10
B. 46
C. 80
D. 94
Show Answer
Scratch Pad
Discuss
Correct Answer: 46
8. __________ is the most suitable fertiliser for paddy.
Options
A. Urea
B. Ammonium sulphate
C. Superphosphate
D. Potassium nitrate
Show Answer
Scratch Pad
Discuss
Correct Answer: Ammonium sulphate
9. Monte catini process is used for the manufacture of
Options
A. nitric acid
B. phosphoric acid
C. urea
D. calcium ammonium nitrate (CAN)
Show Answer
Scratch Pad
Discuss
Correct Answer: urea
10. Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa)
Options
A. use coal for heating purpose.
B. gasify coal to get hydrogen from coal gas.
C. use coal as filler in fertiliser.
D. use coal as conditioner in fertiliser.
Show Answer
Scratch Pad
Discuss
Correct Answer: gasify coal to get hydrogen from coal gas.
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