FERTILISER TECHNOLOGY QUIZ

Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the

Osmotic pressure of the soil water becomes higher than that of the plant sap

Osmotic pressure of the soil water becomes less than that of the plant sap

Soil becomes too acidic

Soil becomes too alkaline

TRUE ANSWER : ?
YOUR ANSWER : ?

Reaction of calcium fluorapatite with sulphuric acid produces

Simple superphosphate

Ortho-phosphoric acid

Red phosphorous

Triple superphosphate

TRUE ANSWER : ?
YOUR ANSWER : ?

Fertiliser value of a nitrogeneous fertiliser is expressed in terms of its __________ content.

N₂

NO₂

KNO₃

NHO₃

TRUE ANSWER : ?
YOUR ANSWER : ?

Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?

1.5:1

0.41736111111111

0.62569444444444

3.5:1

TRUE ANSWER : ?
YOUR ANSWER : ?

Ammonium nitrate is

Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

Not prone to explosive thermal decomposition

Not hygroscopic

Having about 40% N₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?

Electrolysis of water

Natural gas cracking

Steam reforming of naphtha

Cryogenic removal of H₂ from coke oven gas

TRUE ANSWER : ?
YOUR ANSWER : ?

Ammonium phosphate is a __________ fertiliser.

Phosphatic

Complex

Mixed

Nitrogenous

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Ammonium nitrate

Ammonia

Nitric acid

Nitric oxide

TRUE ANSWER : ?
YOUR ANSWER : ?

Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa)

Use coal as filler in fertiliser

Gasify coal to get hydrogen from coal gas

Use coal for heating purpose

Use coal as conditioner in fertiliser

TRUE ANSWER : ?
YOUR ANSWER : ?

Fertiliser plants get their N₂ requirements

By dissociating oxides of nitrogen

By fractionation of liquified air

From producer gas

From coal gas (coke oven gas)

TRUE ANSWER : ?
YOUR ANSWER : ?