Fertiliser Technology MCQ Questions & Answers

41

Dehydration of ammonium carbamate produces

A) Urea B) Biuret C) Ammonia water D) None of these

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Answer & Solution

Answer: Option A

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42

Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant?

A) Urea B) CAN C) Ammonium sulphate D) Superphosphate

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Answer & Solution

Answer: Option C

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43

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

A) Carbonate B) Phosphate C) Bicarbonate D) Silicate

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Answer & Solution

Answer: Option A

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44

Pick out the wrong statement.

A) Dehydration of ammonium carbamate to produce urea is endothermic B) Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable C) Gypsum (CaSO₄.2H₂O) is obtained as a by-product in the wet process for manufacture of ortho-phosphoric acid D) Phosphate rock when reacted with dilute H₂SO₄ produces superphosphate

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Answer & Solution

Answer: Option B

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45

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

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Answer & Solution

Answer: Option A

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46

The fertiliser plant getting hydrogen by electrolysis of water is situated at

A) Namrup B) Nangal C) Rourkela D) Korba

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Answer & Solution

Answer: Option B

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47

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

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Answer & Solution

Answer: Option A

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48

Raw materials for nitric acid manufacture are

A) Hydrogen peroxide, air and water B) Anhydrous ammonia and air C) Anhydrous ammonia, air and water D) Wet ammonia, air and water

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Answer & Solution

Answer: Option C

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49

H₃PO₄ is the chemical formula of __________ phosphoric acid.

A) Pyro B) Ortho C) Meta D) None of these

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Answer & Solution

Answer: Option B

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50

A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia.

A) Coke oven B) Producer C) Natural D) Coal

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Answer & Solution

Answer: Option C

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Fertiliser Technology MCQ Questions & Answers | Chemical Engineering