Q.1
Chemical formula of biuret is
Q.2
In ammonia synthesis (N₂ + 3H₂ = 2NH₃), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at
Q.3
Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?
Q.4
Ammonia synthesis reaction is
Q.5
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
Q.6
Action of phosphoric acid on rock phosphate produces
Q.7
Calcium ammonium nitrate (CAN) is
Q.8
P₂O₅ content in triple superphosphate is about __________ percent.
Q.9
Yield of elemental phosphorous from rock phosphate is about __________ percent.
Q.10
P₂O₅ content in superphosphate is about __________ percent.
Q.11
CaH₄(PO₄)₂ is the chemical formula of
Q.12
Pick out the wrong statement.
Q.13
Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done.
Q.14
Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air.
Q.15
Ammonium nitrate is
Q.16
Fertiliser plants get their N₂ requirements
Q.17
Electric process as compared to wet process (for the manufacture of phosphoric acid)
Q.18
Which of the following gasifiers can be attached to coal based fertiliser plants?
Q.19
In an ammonia plant, the purge off is essential to
Q.20
Which of the following is not a measure component necessarily to be present in fertilisers?
Q.21
Color of nitric acid is light yellow due to the presence of
Q.22
Triple superphosphate is chemically represented as
Q.23
Tricresyl phosphate is chemically represented as
Q.24
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
Q.25
Nitrogen content of urea is about __________ percent.
Q.26
Leaching of phosphate rock by strong __________ acid produces phosphoric acid.
Q.27
__________ is not a fertiliser.
Q.28
Formation of ammonium carbamate by reaction of NH₃ with CO₂ is a/an __________ reaction.
Q.29
Conditioners like finely divided peat are added to the fertiliser to
Q.30
Reaction of cresylic acid with __________ produces tricresyl phosphate.
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