FERTILISER TECHNOLOGY QUIZ

Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium

Carbonate

Phosphate

Bicarbonate

Silicate

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ is required more for leafy crops.

Nitrogen

Carbon

Phosphorous

Potassium

TRUE ANSWER : ?
YOUR ANSWER : ?

Rock phosphate used for the production of phosphatic fertiliser is mined at

Kiriburu (Bihar)

Bailladella (M.P.)

Talchar (Orissa)

Amjhor (Jharkhand)

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Urea

Ammonium sulphate

Calcium ammonium nitrate

Superphosphate

TRUE ANSWER : ?
YOUR ANSWER : ?

Urea is represented as

NH₃CO.CH₃

NH.CO₂.NH

NH₃.CO₂.NH₃

NH₂.CO.NH₂

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Autocatalytic

None of these

Exothermic

Endothermic

TRUE ANSWER : ?
YOUR ANSWER : ?

Heating of orthophosphoric acid to 250°C produces

No change in it

Metaphosphoric acid

None of these

Pyrophosphoric acid

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Kopper-Totzek gasifier

Lurgi (high pressure) gasifier

Gasifier working at 40 atm

Gasifier working at 20 atm

TRUE ANSWER : ?
YOUR ANSWER : ?

During conversion of ammonium carbamate into urea, presence of large excess of water

Adversely affects the yield of urea

Does not affect the yield of urea

Increases the yield of urea

Reduces the evaporator load by diluting the urea solution

TRUE ANSWER : ?
YOUR ANSWER : ?

Reaction of phosphate rock with 98% H₂SO₄ produces

White phosphorous

Orthophosphoric acid

None of these

Superphosphate

TRUE ANSWER : ?
YOUR ANSWER : ?

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