Fertiliser Technology MCQ Questions & Answers | Chemical Engineering Page-6 section-2

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51.
Both white phosphorous as well as red phosphorous

A. Are soluble in CS₂

B. Burns when heated in air

C. Reacts with hot caustic soda solution to give phosphine

D. All of the above

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52.
C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about

A. 2

B. 6

C. 13

D. 20

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53.
Prilling tower is found in the flowsheet for the manufacture of

A. Ammonia

B. Urea

C. Superphosphate

D. Triple superphosphate

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54.
The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser.

A. Nitrogenous

B. Phosphatic

C. Potassic

D. None of these

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55.
Oxidation of ammonia is

A. Exothermic

B. Endothermic

C. Non-catalytic

D. Autocatalytic

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56.
Phosphatic fertilisers

A. Are useful during early stage of the plant growth

B. Accelerate fruit formation in later stages of growth

C. Lessen the effect of excessive nitrogen application

D. None of these

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57.
Phosphorus vapour comprises of

A. P

B. P₂

C. P₃

D. P₄

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58.
Pick out the wrong statement.

A. Nitrogen is normally supplied in fertiliser either in ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions or nitrate ions and forms amino acids

B. Calcium present in the fertiliser helps in correcting the soil acidity

C. Particle size range of a good grannular fertiliser is 10-15 mesh and it contains less moisture as compared to finely divided powder form of fertiliser

D. Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

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59.
Plant tranquillisers

A. Hold back stem growth and halt plants at a desired height

B. Cause early maturation of plants

C. Accelerate ripening of food and grain

D. Produce seedless fruit

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60.
(CH₃C₆H₄)₃PO₄ is the chemical formula of

A. Triple superphosphate

B. Tricresyl phosphate

C. Flourapatite

D. Superphosphate

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Fertiliser Technology MCQ Questions & Answers | Chemical Engineering

51. Both white phosphorous as well as red phosphorous

Answer & Solution

52. C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about

Answer & Solution

53. Prilling tower is found in the flowsheet for the manufacture of

Answer & Solution

54. The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser.

Answer & Solution

55. Oxidation of ammonia is

Answer & Solution

56. Phosphatic fertilisers

Answer & Solution

57. Phosphorus vapour comprises of

Answer & Solution

58. Pick out the wrong statement.

Answer & Solution

59. Plant tranquillisers

Answer & Solution

60. (CH3C6H4)3PO4 is the chemical formula of

Answer & Solution

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51.
Both white phosphorous as well as red phosphorous

52.
C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about

53.
Prilling tower is found in the flowsheet for the manufacture of

54.
The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser.

55.
Oxidation of ammonia is

56.
Phosphatic fertilisers

57.
Phosphorus vapour comprises of

58.
Pick out the wrong statement.

59.
Plant tranquillisers

60.
(CH₃C₆H₄)₃PO₄ is the chemical formula of