Fertilizer Technology Quiz 1
1 / 50
______ is the undesirable by-product produced in the manufacture of urea ?
2 / 50
A fertiliser plant is classified as a gas based fertiliser plant, when it uses _______ gas as a source of hydrogen for the manufacture of ammonia?
3 / 50
Biuret formation in urea is kept at minimum (< 1 %), because it is_____?
4 / 50
Commercial fertilisers are available mostly in the form of___________?
5 / 50
Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talcher (Orissa) ?
6 / 50
Chemical formula of biuret is__________?
7 / 50
Catalytic ammonia synthesis reaction as in Haber?s process is__________?
8 / 50
Ammonium phosphate is a ______ fertiliser?
9 / 50
A nitrogenous fertiliser contains 20% N2. It could be__________?
10 / 50
Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because________?
11 / 50
Bio-fertilisers are cheaper, renewable and pollution free. They improve the ______ of the soil?
12 / 50
Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by_________?
13 / 50
Ammonium nitrate is_____?
14 / 50
Catalyst used in steam reforming of naphtha is___________?
15 / 50
Ammonium sulphate fertiliser is ___________?
16 / 50
Both white phosphorous as well as red phosphorous__________?
17 / 50
______ is required more for leafy crops?
18 / 50
A phosphatic fertiliser contains 16% P2O5. It could be_________?
19 / 50
CaH4(PO4)2 is the chemical formula of _____?
20 / 50
Color of nitric acid is light yellow due to the presence of___________?
21 / 50
Ammonia synthesis gas is produced from fuel oil by __________?
22 / 50
_____ catalyst is used in the production of urea from CO2 and NH3?
23 / 50
A fertiliser contains 82% N2. It could be_______?
24 / 50
An increase in the NH3/CO2 ratio in urea manufacture results in___________?
25 / 50
Catalyst used in desulphurisation of naphtha is______?
26 / 50
CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in __________?
27 / 50
-10-5 fertilisers mean that they contain_______?
28 / 50
Base suspension fertiliser essentially contains_____?
29 / 50
A Potassic fertiliser contains 50% K2O. It could be __________?
30 / 50
Dehydration of ammonium carbamate (to produce urea) is a/an ______ reaction?
31 / 50
Ammonium sulphate can be produced by reacting gypsum with______?
32 / 50
Chemical formula of meta-phosphoric acid is _____?
33 / 50
C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about__________?
34 / 50
Ammonia synthesis reaction is________?
35 / 50
Calcium ammonium nitrate (CAN) is___________?
36 / 50
Catalyst used in the oxidation of ammonia is _________?
37 / 50
Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450?C in the _____?
38 / 50
Catalyst used in Haber?s process for ammonia production is__________?
39 / 50
A mixture of phosphate rock _______ is heated in an electric furnace to produce phosphorous?
40 / 50
Action of phosphoric acid on rock phosphate produces__________?
41 / 50
Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at _____ ?C in absence of air?
42 / 50
Catalyst used in ammonia synthesis uses _____ as a promoter?
43 / 50
Ammonia synthesis gas is produced from natural gas by_____?
44 / 50
Catalyst used in the manufacture of NH3 by Haber?s process is finely divided_________?
45 / 50
_______ is the most suitable fertiliser for paddy?
46 / 50
Ammonium nitrate (a fertiliser) is coated with limestone powder to ______?
47 / 50
Catalyst used in steam reforming of naphtha is _____?
48 / 50
(CH3 C6 H4)3 PO4 is the chemical formula of___________?
49 / 50
Conditioners like finely divided peat are added to the fertiliser to_________?
50 / 50
______ is not a fertiliser?
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