FERTILISER TECHNOLOGY QUIZ

Gas based fertiliser plants use

Coal gas as heating medium

Coal gas as a source of hydrogen

Natural gas as a source of hydrogen

Natural gas as heating medium

TRUE ANSWER : ?
YOUR ANSWER : ?

Ammonia synthesis gas is produced from natural gas by

Partial oxidation

Hydrogenation

Steam reforming

Thermal cracking

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following does not come under the category of'primary nutrient' for plant growth?

Nitrogen

Potassium

Sulphur

Phosphorous

TRUE ANSWER : ?
YOUR ANSWER : ?

Reaction of orthophosphoric acid with soda ash produces

Tricresyl phosphate

Tributyl phosphate

Nitrophosphate

Sodium tripolyphosphate (STPP)

TRUE ANSWER : ?
YOUR ANSWER : ?

In the manufacture of orthophosphoric acid by strong H₂SO₄ leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable

Metaphosphoric acid

All of these

Pyrophosphoric acid

CaSO₄ .½H₂O and CaSO₄ crystals

TRUE ANSWER : ?
YOUR ANSWER : ?

Catalyst used in Haber's process for ammonia production is

Silica gel

Nickel

Vanadium pentoxide

Reduced iron oxide

TRUE ANSWER : ?
YOUR ANSWER : ?

Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550°C), because at low temperature

Rate of reaction is very low

Very high pressure is required resulting in costly pressure vessel

None of these

Space velocity of gas is very low resulting in decreased conversion

TRUE ANSWER : ?
YOUR ANSWER : ?

Chemical formula of biuret is

NH₂CONHCONH₂

NH₃.COO.NH₃

NH₄COONH₂

NH₂.CO.NH₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Iron is not used alone as a catalyst in ammonia synthesis, because

It gets oxidised above 500°C

Its activity declines rapidly, if heated to above 520°C

None of these

It decomposes ammonia

TRUE ANSWER : ?
YOUR ANSWER : ?

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

KNO₃

NO₂

NHO₃

N₂

TRUE ANSWER : ?
YOUR ANSWER : ?