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Fertilizer Technology

Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at ____________ °C in absence of air?

Fertilizer Technology /
Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at ____________ °C in absence of air?

A. 50-80
B. 250-400
C. 1000-1200
D. 800-900

Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at ____________ °C in absence of air? Read More »

Fertilizer Technology

Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in ______________ of the catalyst ?

Fertilizer Technology /
Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in ______________ of the catalyst ?

A. Stabilisation
B. Increasing the effectiveness
C. Improving the strength & heat resistance
D. All A, B & C

Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in ______________ of the catalyst ? Read More »

Fertilizer Technology

Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by________________?

Fertilizer Technology /
Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by________________?

A. Steam reforming of naphtha and cracking of natural gas
B. Electrolysis of water
C. Cryogenic separation of hydrogen from coke oven gas
D. All A., B. and C.

Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by________________? Read More »

Fertilizer Technology