E-PolyLearning

51. Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis ?
a. H₂ separation from coke oven gas
b. Steam reforming of naphtha
c. Cracking of natural gas
d. Electrolysis of water
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Answer: (d).Electrolysis of water

52. In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed.
a. Fauser-Monte Catini
b. Claude
c. Udhe
d. Kellog
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Answer: (b).Claude

53. The essential ingradient of all the synthesis gas is
a. H₂
b. O₂
c. CO₂
d. N₂
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Answer: (a).H₂

54. Sodium tri poly phosphate (STPP) is chemically represented as
a. Na₅P₃O₁₀
b. Na₄P₃O₈
c. Na₃P₄O₆
d. Na₂PO₄
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Answer: (a).Na₅P₃O₁₀

55. A fertiliser contains 82% N₂. It could be
a. urea
b. liquid NH₃
c. ammonium nitrate
d. none of these
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Answer: (b).liquid NH₃