Fertiliser Technology MCQ Questions & Answers | Chemical Engineering Page-4 section-1

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31.
CaH₄(PO₄)₂ is the chemical formula of

A. Superphosphate

B. Triple superphosphate

C. Calcium phosphate

D. Meta phosphoric acid

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32.
Pick out the wrong statement.

A. Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty

B. Large excess use of nitrogenous fertiliser in land causes the problem of diarrhoea and cyanosis

C. Application of large excess of potassic fertiliser in soil increases the valuable carotene in fruits and vegetables

D. Cereal crops grown on alkaline soil absorb higher amount of flourides thereby spreading flourosis

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33.
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.

A. Exothermic

B. Endothermic

C. Autocatalytic

D. Catalytic

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34.
Nitrogen content of urea is about __________ percent.

A. 10

B. 46

C. 80

D. 94

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35.
Leaching of phosphate rock by strong __________ acid produces phosphoric acid.

A. Sulphuric

B. Hydrochloric

C. Either A or B

D. Neither A nor B

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36.
Ammonia synthesis reaction is

A. Exothermic

B. Endothermic

C. Autocatalytic

D. None of these

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37.
Ammonium nitrate is

A. Having about 40% N₂

B. Not hygroscopic

C. Not prone to explosive thermal decomposition

D. Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

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38.
Fertiliser plants get their N₂ requirements

A. By fractionation of liquified air

B. By dissociating oxides of nitrogen

C. From coal gas (coke oven gas)

D. From producer gas

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39.
Electric process as compared to wet process (for the manufacture of phosphoric acid)

A. Can use only high grade phosphate rock

B. Is used less frequently

C. Produces a valuable by-product called gypsum

D. Is weak acid process

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40.
Conditioners like finely divided peat are added to the fertiliser to

A. Counteract burning

B. Avoid caking & hardening

C. Produce bulk

D. Increase its solubility

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Fertiliser Technology MCQ Questions & Answers | Chemical Engineering

31. CaH4(PO4)2 is the chemical formula of

Answer & Solution

32. Pick out the wrong statement.

Answer & Solution

33. Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.

Answer & Solution

34. Nitrogen content of urea is about __________ percent.

Answer & Solution

35. Leaching of phosphate rock by strong __________ acid produces phosphoric acid.

Answer & Solution

36. Ammonia synthesis reaction is

Answer & Solution

37. Ammonium nitrate is

Answer & Solution

38. Fertiliser plants get their N2 requirements

Answer & Solution

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

Answer & Solution

40. Conditioners like finely divided peat are added to the fertiliser to

Answer & Solution

Read More Section(Fertiliser Technology)

31.
CaH₄(PO₄)₂ is the chemical formula of

32.
Pick out the wrong statement.

33.
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.

34.
Nitrogen content of urea is about __________ percent.

35.
Leaching of phosphate rock by strong __________ acid produces phosphoric acid.

36.
Ammonia synthesis reaction is

37.
Ammonium nitrate is

38.
Fertiliser plants get their N₂ requirements

39.
Electric process as compared to wet process (for the manufacture of phosphoric acid)

40.
Conditioners like finely divided peat are added to the fertiliser to