Fertiliser Technology - Section 1

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.

1.

Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium

A.	carbonate
B.	phosphate
C.	bicarbonate
D.	silicate

Answer: Option A

Explanation:

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

2.

Catalyst used in Haber's process for ammonia production is

A.	reduced iron oxide
B.	nickel
C.	vanadium pentoxide
D.	silica gel

Answer: Option A

Explanation:

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3.

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

A.	Rourkela (under SAIL)
B.	Bokaro (under SAIL)
C.	Sindri (under FCI)
D.	Baroda (under G.S.F.C.)

Answer: Option C

Explanation:

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4.

Nitrogenous fertiliser is required

A.	during the early stage of growth to promote development of stem and leaves.
B.	for accelerating fruit formation in later stage of growth.
C.	to lessen the effect of excessive potash application.
D.	none of these.

Answer: Option A

Explanation:

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5.

Ammonium sulphate can be produced by reacting gypsum with

A.	ammonia
B.	ammonium carbonate
C.	nitric acid
D.	none of these

Answer: Option B

Explanation:

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6.

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.

Answer: Option B

Explanation:

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7.

Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.

A.	reversible
B.	catalytic
C.	exothermic
D.	endothermic

Answer: Option D

Explanation:

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8.

Urea is formed only

A.	in liquid phase
B.	in vapour phase
C.	at very high temperature
D.	at very low pressure (vacuum)

Answer: Option A

Explanation:

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