Q.1
Catalyst used in steam reforming of naphtha is
Q.2
Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.
Q.3
Sodium tri poly phosphate (STPP) is chemically represented as
Q.4
I argest capacity nitrogenous fertiliser plants (2700 tons of NH₃ per day) (2 Nos) in India are located at
Q.5
Catalyst used in steam reforming of naphtha is
Q.6
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits?
Q.7
The optimum size of the ammonia plant is __________ tons/day.
Q.8
Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa)
Q.9
Temperature and pressure in urea autoclave is
Q.10
Iron is not used alone as a catalyst in ammonia synthesis, because
Q.11
Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent.
Q.12
Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
Q.13
Maximum stability of white phosphorous is at
Q.14
Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH₃
Q.15
Pick out the wrong statement.
Q.16
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
Q.17
Which of the following fertilisers contains the least percentage of nitrogen?
Q.18
Conversion achieved in HNO₃ synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by
Q.19
Fertilizer plant getting its hydrogen requirement partly from coke oven gas is situated at
Q.20
Main component of bone ash is
Q.21
Reaction of anhydrous liquid ammonia with orthophosphoric acid produces
Q.22
Catalyst used in the oxidation of ammonia is
Q.23
NPK means a __________ fertiliser.
Q.24
5-10-5 fertilisers mean that they contain
Q.25
An increase in the NH₃/CO₂ ratio in urea manufacture results in
Q.26
Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of
Q.27
Steam reforming of naphtha produces ammonia synthesis gas. This is a/an __________ process.
Q.28
Maximum nitrogen percentage is in
Q.29
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.
Q.30
Rock phosphate constitutes mainly of
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