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Fertiliser Technology

Fertiliser Technology
Catalyst used in ammonia synthesis uses __________ as a promoter.

Ni
Pt
Al2O₃
K₂O

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Fertiliser Technology
Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.

25-28
52-54
> 98
75-80

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

Potassic fertiliser
Nitrogeneous fertiliser
None of these
Phosphatic fertiliser

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Fertiliser Technology
A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous.

Salt & coke
And coke
And sand
Sand & coke

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Fertiliser Technology
Which of the following does not come under the category of'primary nutrient' for plant growth?

Sulphur
Phosphorous
Potassium
Nitrogen

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

Nitrogen
Calcium
Phosphorous
Potassium

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