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Fertilizer Technology Quiz 4

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Fertilizer Technology Quiz 4

1 / 43

Two gas based fertiliser plants are located in India are__________?

2 / 43

Which of the following is not a mixed fertiliser ?

3 / 43

Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it_____?

4 / 43

Triple superphosphate is chemically represented as_______?

5 / 43

Which is the best fertiliser for paddy ?

6 / 43

Triple superphosphate is made by reacting phosphate rock with ______ acid?

7 / 43

Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas ?

8 / 43

Urea is represented as________?

9 / 43

The composition of fresh feed to the high temperature, high pressure urea autoclave is________?

10 / 43

With increases in pressure, the conversion of Ammonium carbamate into urea_____?

11 / 43

Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils ?

12 / 43

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 ?

13 / 43

The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about _____ percent?

14 / 43

Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth ?

15 / 43

Which is a catalyst promoter used in catalytic ammonia synthesis reaction ?

16 / 43

Which of the following fertilisers contains the least percentage of nitrogen ?

17 / 43

Triple superphosphate which contains about 46% P2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of______ percent concentration?

18 / 43

Which of the following fertilizers is used as a cattle feed ?

19 / 43

Urea (a nitrogenous fertiliser) is produced from carbon dioxide and___________?

20 / 43

Yield of elemental phosphorous from rock phosphate is about ______ percent?

21 / 43

Which is the most suitable fertiliser for paddy ?

22 / 43

Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber?s process ?

23 / 43

The main constituent of rock phosphate is _______?

24 / 43

Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant ?

25 / 43

Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis ?

26 / 43

Which of the following does not come under the category of ?secondary nutrient? for plant growth ?

27 / 43

Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition ________?

28 / 43

Which of the following gasifiers can be attached to coal based fertiliser plants ?

29 / 43

Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching ?

30 / 43

Vetrocoke solution is__________?

31 / 43

Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits ?

32 / 43

Tricresyl phosphate is chemically represented as_____?

33 / 43

The essential ingredient of all the synthesis gas is_____?

34 / 43

Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550?C), because at low temperature_____?

35 / 43

Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the ________ process?

36 / 43

The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is ______ fertiliser?

37 / 43

Urea is formed only______?

38 / 43

Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of _____ this is normally not done?

39 / 43

The optimum size of the ammonia plant is _______ tons/day?

40 / 43

Which of the following is not a measure component necessarily to be present in fertilisers ?

41 / 43

Which nutrient in fertiliser makes the plant stems stronger and increases branching ?

42 / 43

Urea is a better fertilizer than ammonium sulphate, because___________?

43 / 43

Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?

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