Fertiliser Technology - Study Mode

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[#161] Urea (a nitrogeneous fertiliser) is produced from carbon dioxide and

(A) Nitric acid

(B) Ammonia

(C) Ammonium nitrate

(D) Nitric oxide

Correct Answer

(B) Ammonia

[#162] HPO 3 is the chemical formula of __________ phosphoric acid.

(A) Pyro

(B) Ortho

(C) Meta

(D) None of these

Correct Answer

(C) Meta

[#163] Catalyst used in ammonia synthesis uses __________ as a promoter.

(A) Pt

(B) K 2 O

(C) Al 2 O 3

(D) Ni

Correct Answer

(B) K 2 O

[#164] Commercial fertilisers are available mostly in the form of

(A) Powder

(B) Grannules

(C) Lumps

(D) Flakes

Correct Answer

(B) Grannules

[#165] Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.

(A) Nutrient supply

(B) Texture

(C) Water holding capacity

(D) All of the above

Correct Answer

(D) All of the above