Commercial production of hydrogen for the manufacture of nitrogeneous fertilisers is done by

Which of the following is the costliest source of getting hydrogen on commercial scale for the manufacture of nitrogeneous fertiliser?

A

Coal gasification

B

Steam reforming of naphtha

C

Alectrolysis of water

D

Coke oven gas

Hydrogen gas is not produced commercially (for nitrogeneous fertiliser manufacture) by

A

Iron-steam reaction

B

Electrolysis of water

C

Steam reforming of naphtha

D

Its cryogenic separation from coke oven gas

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?

A

1.5:1

B

3.5:1

C

10:1

D

15:1

The chief source for the production of nitrogeneous fertilizers is :

A

Ammonia

B

Nitric acid

C

Nitrogen

D

Nitrogen dioxide

Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier.

A

Entrained

B

Moving

C

Fixed

D

Fluidised

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

A

Nitric acid

B

Ammonia

C

Ammonium nitrate

D

Nitric oxide

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

A

N₂

B

KNO₃

C

NO₂

D

NHO₃

Commercial fertilisers are available mostly in the form of

A

Powder

B

Grannules

C

Lumps

D

Flakes

Which one of the following elements is least likely to be found in commercial fertilisers?

A

Nitrogen

B

Phosphorous

C

Potassium

D

Silicon

Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis?

A

H₂ separation from coke oven gas

B

Steam reforming of naphtha

C

Cracking of natural gas

D

Electrolysis of water

Commercial production of hydrogen for the manufacture of nitrogeneous fertilisers is done by

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