FERTILISER TECHNOLOGY QUIZ

Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.

Catalytic

Exothermic

Endothermic

Reversible

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YOUR ANSWER : ?

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

Has a pungent smell

Is in short supply

Is toxic and highly corrosive

Vaporises at normal temperature

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YOUR ANSWER : ?

Rock phosphate constitutes mainly of

Mono-calcium phosphate

Di-ammonium phosphate

Fluorapatite

Di-calcium phosphate

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Fauser Monte Catini converter is used for

None of these

Ammonia synthesis (e.g. at FCI Sindri)

Methanation of CO and CO₂

Shift conversion (i.e. CO to CO₂)

TRUE ANSWER : ?
YOUR ANSWER : ?

Biuret formation in urea is kept at minimum (< 1 %), because it is

Toxic and harmful to some crops

Corrosive in nature

Helpful in decomposition of urea

Explosive in nature

TRUE ANSWER : ?
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A potassic fertiliser contains 50% K₂O. It could be

None of these

Potassium chloride

Potassium sulphate

A mixture of NaCl+ KCl

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Which of the following is a natural inorganic fertiliser?

Chile salt petre

None of these

Gobar mannure

Oilcake

TRUE ANSWER : ?
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Red phosphorous is changed into white phosphorous by

Heating in presence of light

Vaporisation followed by condensation

None of these

Melting under pressure

TRUE ANSWER : ?
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Main constituent of phosphate rock is

Calcium phosphate

Ammonium phosphate

Calcium fluoride

Flour apatite

TRUE ANSWER : ?
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Raw materials for nitric acid manufacture are

Wet ammonia, air and water

Anhydrous ammonia and air

Hydrogen peroxide, air and water

Anhydrous ammonia, air and water

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YOUR ANSWER : ?

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