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MCQs

Total Questions : 1041 | Page 15 of 105 pages
Question 141. Dehydration of ammonium carbamate produces
  1.    Urea
  2.    Biuret
  3.    Ammonia water
  4.    None of these
 Discuss Question
Answer: Option A. -> Urea
Question 142. Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant?
  1.    Urea
  2.    CAN
  3.    Ammonium sulphate
  4.    Superphosphate
 Discuss Question
Answer: Option C. -> Ammonium sulphate
Question 143. Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium
  1.    Carbonate
  2.    Phosphate
  3.    Bicarbonate
  4.    Silicate
 Discuss Question
Answer: Option A. -> Carbonate
Question 144. Pick out the wrong statement.
  1.    Dehydration of ammonium carbamate to produce urea is endothermic
  2.    Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable
  3.    Gypsum (CaSO₄. 2H₂O) is obtained as a by-product in the wet process for manufacture of ortho-phosphoric acid
  4.    Phosphate rock when reacted with dilute H₂SO₄ produces superphosphate
 Discuss Question
Answer: Option B. -> Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable
Question 145. Nitrogenous fertiliser is required
  1.    During the early stage of growth to promote development of stem and leaves
  2.    For accelerating fruit formation in later stage of growth
  3.    To lessen the effect of excessive potash application
  4.    None of these
 Discuss Question
Answer: Option A. -> During the early stage of growth to promote development of stem and leaves
Question 146. The fertiliser plant getting hydrogen by electrolysis of water is situated at
  1.    Namrup
  2.    Nangal
  3.    Rourkela
  4.    Korba
 Discuss Question
Answer: Option B. -> Nangal
Question 147. In calcium ammonium nitrate (CAN) fertil-ser
  1.    Nitrate nitrogen is quick acting
  2.    Ammoniacal nitrogen is quick acting
  3.    Nitrate nitrogen is slower acting
  4.    None of these
 Discuss Question
Answer: Option A. -> Nitrate nitrogen is quick acting
Question 148. Raw materials for nitric acid manufacture are
  1.    Hydrogen peroxide, air and water
  2.    Anhydrous ammonia and air
  3.    Anhydrous ammonia, air and water
  4.    Wet ammonia, air and water
 Discuss Question
Answer: Option C. -> Anhydrous ammonia, air and water
Question 149. H₃PO₄ is the chemical formula of __________ phosphoric acid.
  1.    Pyro
  2.    Ortho
  3.    Meta
  4.    None of these
 Discuss Question
Answer: Option B. -> Ortho
Question 150. 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.
  1.    Coke oven
  2.    Producer
  3.    Natural
  4.    Coal
 Discuss Question
Answer: Option C. -> Natural

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