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Chemical Engineering - Fertiliser Technology

Exercise : Fertiliser Technology - Section 1
36.
P2O5 content in triple superphosphate is about __________ percent.
42-50
15-20
85-90
70-75
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
H3PO4 is the chemical formula of __________ phosphoric acid.
pyro
ortho
meta
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Heating of orthophosphoric acid to 250°C produces
metaphosphoric acid
pyrophosphoric acid
no change in it
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the __________ process.
Haber's
Stengel
Le-chatlier's
Du-pont's
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in __________ of the catalyst.
stabilisation
increasing the effectiveness
improving the strength & heat resistance
all a, b & c
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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