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MCQs

Total Questions : 1041 | Page 102 of 105 pages
Question 1011. Prilling tower is found in the flowsheet for the manufacture of__________________?
  1.    Ammonia
  2.    Urea
  3.    Superphosphate
  4.    Triple superphosphate
 Discuss Question
Answer: Option B. -> Urea
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1012. Heating of ortho-phosphoric acid to about 900°C, produces_________________?
  1.    Meta-phosphoric acid
  2.    Pyrophosphoric acid
  3.    No change in it
  4.    None of these
 Discuss Question
Answer: Option A. -> Meta-phosphoric acid
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1013. Dehydration of ammonium carbamate to yield urea is a/an __________________ reaction?
  1.    Exothermic
  2.    Endothermic
  3.    Autocatalytic
  4.    Catalytic
 Discuss Question
Answer: Option B. -> Endothermic
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1014. Nitrogen content in ammonium sulphate (a fertiliser) is around ______________ percent?
  1.    5
  2.    20
  3.    50
  4.    65
 Discuss Question
Answer: Option B. -> 20
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1015. Both white phosphorous as well as red phosphorous_________________?
  1.    Are soluble in CS2
  2.    Burns when heated in air
  3.    Reacts with hot caustic soda solution to give Phosphine
  4.    All A., B., and C.
 Discuss Question
Answer: Option B. -> Burns when heated in air
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1016. Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits ?
  1.    Nitrogenous fertilisers
  2.    Phosphatic fertilisers
  3.    Potassic fertiliser
  4.    None of these
 Discuss Question
Answer: Option C. -> Potassic fertiliser
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1017. Flushing liquor used for cooling coke oven gas constitutes of __________________?
  1.    Ammoniacal liquor
  2.    K2CO3 solution
  3.    Dilute H2SO4
  4.    Dilute HCl
 Discuss Question
Answer: Option A. -> Ammoniacal liquor
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1018. Which of the following is not a mixed fertiliser ?
  1.    Nitrophosphate
  2.    Calcium ammonium nitrate (CAN)
  3.    Ammonium phosphate
  4.    None of these
 Discuss Question
Answer: Option B. -> Calcium ammonium nitrate (CAN)
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1019. Leaching of phosphate rock by strong ____________ acid produces phosphoric acid ?
  1.    Sulphuric
  2.    Hydrochloric
  3.    Either A. or B.
  4.    Neither A. nor B.
 Discuss Question
Answer: Option C. -> Either A. or B.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1020. Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3__________________?
  1.    HNO3 & limestone
  2.    CO2 & H2SO4
  3.    HNO3 & NH4Cl
  4.    CO2 & KNO3
 Discuss Question
Answer: Option A. -> HNO3 & limestone
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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