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Chemical Engineering - Fertiliser Technology

Exercise : Fertiliser Technology - Section 1
41.
Prilling tower is found in the flowsheet for the manufacture of
ammonia
urea
superphosphate
triple superphosphate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Reaction of orthophosphoric acid with soda ash produces
sodium tripolyphosphate (STPP)
tricresyl phosphate
tributyl phosphate
nitrophosphate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Urea is formed only
in liquid phase
in vapour phase
at very high temperature
at very low pressure (vacuum)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.
reversible
catalytic
exothermic
endothermic
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Electric process as compared to wet process (for the manufacture of phosphoric acid)
can use only high grade phosphate rock.
is used less frequently.
produces a valuable by-product called gypsum.
is weak acid process.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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