FERTILISER TECHNOLOGY QUIZ

In the manufacture of H₃ PO₄ (ortho), ; strong H₂ SO₄ leaching wet process as compared to electric furnace process

Is very costly

Uses lower grade phosphate rock

Requires lower capital investment in the plant

Produces lower purity acid

TRUE ANSWER : ?
YOUR ANSWER : ?

Low grade coal is __________ to produce ammonia synthesis gas.

Dehydrogenated

Liquefied

Hydrogenated

Gasified

TRUE ANSWER : ?
YOUR ANSWER : ?

Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is

Autocatalytic

Exothermic

Endothermic

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

A potassic fertiliser contains 50% K₂O. It could be

Potassium sulphate

A mixture of NaCl+ KCl

None of these

Potassium chloride

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ is the most suitable fertiliser for paddy.

Ammonium sulphate

Superphosphate

Urea

Potassium nitrate

TRUE ANSWER : ?
YOUR ANSWER : ?

Urea (a nitrogeneous fertiliser) is produced from carbon dioxide and

Nitric oxide

Ammonium nitrate

Nitric acid

Ammonia

TRUE ANSWER : ?
YOUR ANSWER : ?

Nitric acid is produced on commercial scale in a fertiliser plant by

Oxidation of ammonia

None of these

CaNO₃ + H₂SO₄ reaction

Passing air through high voltage electric arc

TRUE ANSWER : ?
YOUR ANSWER : ?

Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the

Absence of air

Presence of an inert atmosphere

Presence of an oxidising atmosphere

Presence of a reducing atmosphere

TRUE ANSWER : ?
YOUR ANSWER : ?

Nitrolime is

Calcium ammonium nitrate

A mixture of ammonium nitrate and calcium nitrate

Calcium nitrate

A mixture of nitric acid and lime

TRUE ANSWER : ?
YOUR ANSWER : ?

Potassic fertilisers

None of these

Help in development of starches of potatoes and grain

Stimulate early growth and accelerate seeding

Are useful during early stage of the plant growth

TRUE ANSWER : ?
YOUR ANSWER : ?

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