FERTILISER TECHNOLOGY QUIZ

Phosphatic fertilisers

Lessen the effect of excessive nitrogen application

Are useful during early stage of the plant growth

None of these

Accelerate fruit formation in later stages of growth

TRUE ANSWER : ?
YOUR ANSWER : ?

In ammonia synthesis (N₂ + 3H₂ = 2NH₃), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at

Very high temperature

Low pressure

Atmospheric pressure; as the pressure has no effect on conversion

High pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

Temperature and pressure in urea autoclave is

200°C and 10 atm

120°C and 300 atm

190°C and 200 atm

400°C and 550 atm

TRUE ANSWER : ?
YOUR ANSWER : ?

Tricresyl phosphate is chemically represented as

(CH₃ C₆ H₄)₃ PO₄

(NH₄)₂HPO₄

NH₄H₂PO₄

Ca₁₀(PO₄)3F₆

TRUE ANSWER : ?
YOUR ANSWER : ?

Effectiveness of a fertiliser is independent of the

Type of crop

None of these

Nature of soil

PH of soil

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Calcium

Oxygen

Magnesium

Sulphur

TRUE ANSWER : ?
YOUR ANSWER : ?

Potassic fertilisers

Stimulate early growth and accelerate seeding

Are useful during early stage of the plant growth

None of these

Help in development of starches of potatoes and grain

TRUE ANSWER : ?
YOUR ANSWER : ?

Catalyst used in Haber's process for ammonia production is

Vanadium pentoxide

Silica gel

Reduced iron oxide

Nickel

TRUE ANSWER : ?
YOUR ANSWER : ?

In the manufacture of urea, the intermediate chemical formed is

Ammonium carbamate

None of these

Biuret

Ammonium carbonate

TRUE ANSWER : ?
YOUR ANSWER : ?

Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the __________ process.

Haber's

Le-chatlier's

Du-pont's

Stengel

TRUE ANSWER : ?
YOUR ANSWER : ?