B. Sulphuric acid

C. Phosphoric acid

D. Coke

A. By dissociating oxides of nitrogen

B. From producer gas

D. From coal gas (coke oven gas)

A. It is a liquid at room temperature

C. It is highly acidic in nature

D. Its nitrogen content is very less

A. It is cheap

B. It produces low cost product

D. CaO content is less

A. Cupola

B. Soaking pit

C. Open hearth furnace

A. Ammonium nitrate

B. Nitric acid

D. Nitric oxide

A. e ovens</strong>

B. Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from

C. pared to finely divided powder form of fertiliser

D. ch the soil takes it up in the form of ammonium ions or nitrate ions and forms amino acids

E. Particle size range of a good granular fertiliser is 10-15 mesh and it contains less moisture as

F. Calcium present in the fertiliser helps in correcting the soil acidity

A. Suspended solid

B. Dissolved solid

C. Gritty & inorganic

A. Briquettes

B. Oil gas

D. Pitch creosote mixture

A. No change in it

B. None of these

D. Pyrophosphoric acid

A. Ca(H2PO4)2

B. Ca(PO3)2

C. 3Ca3(PO4)2

A. Silicate

B. Bicarbonate

D. Phosphate

B. Triple superphosphate

C. Superphosphate

D. Gypsum

A. Fuel

C. O2

D. N2

A. Coagulation

B. Cation exchanger

C. Irradiation of water by ultraviolet light

A. Disposing off in rivers & oceans

B. Dilution with inert material

C. Discharging to atmosphere through tall stacks after dilution

A. 20

B. 10

D. 80

A. 43% N2 and 13% K2O

C. 43% N2 and 13% P2O5

D. 43% K2O and 43% P2O5

A. Endothermic

B. None of these

D. Irreversible

B. Produces a valuable by-product called gypsum

C. Is weak acid process

D. Can use only high grade phosphate rock

A. None of these

B. It gets oxidised above 500C

C. It decomposes ammonia

A. Low bulk density product

C. Substantially wet non-flowing and sticky product

D. Non-spherical prills

B. Calcium

C. Nitrogen

D. Potassium

A. HNO3 and CaCO3

B. NH3 and CO

D. CO2 and N2

A. Increases biuret formation

B. Does not effect biuret formation

D. Is undesirable

A. None of these

B. Are useful during early stage of the plant growth

D. Stimulate early growth and accelerate seeding

A. 100-200

C. 1500-1700

D. 300 450

A. Nickel

B. Pt-Rh

C. Silica gel

A. Remove uncondensed ammonia vapour

B. Remove excess poisonous gases

D. Maintain inert gas concentration within a limit

A. Ortho-phosphoric acid

B. Red phosphorous

D. Triple superphosphate

B. Steam reforming of naphtha

C. H2 separation from coke oven gas

D. Cracking of natural gas

A. SO2

B. Hydrocarbons

C. CO2

A. 20

B. 750

C. 1500

A. Phosphorous

C. Sulphur

D. Calcium

A. Phosphoric acid

B. Nitric acid

C. Calcium ammonium nitrate (CAN)

A. Improving the strength & heat resistance

C. Increasing the effectiveness

D. Stabilisation

B. Coal mining

C. Limestone mining

D. Asbestos

B. N2H5

C. NH3

D. NO

A. Acoustic absorbent

B. None of these

C. Lagging of noisy duct

B. Having about 40% N2

C. Not prone to explosive thermal decomposition

D. Not hygroscopic

B. Exothermic

C. Reversible

D. Catalytic

A. Of jamming of respiratory tract

B. Of clotting of blood

C. It forms CO2 by combining with oxygen present in the blood

D. apable of absorbing oxygen</strong>

A. Partial oxidation

C. Hydrogenation

D. Thermal cracking

B. Nickel

C. Alumina

D. Vanadium pentoxide

B. NHO3

C. KNO3

D. NO2

B. Superphosphate

C. Ammonium phosphate

D. Phosphoric acid

A. Non-catalytic

B. Autocatalytic

C. Endothermic

A. Remains unaltered

C. Can either increase or decrease depends on biuret content

D. Decreases

A. Urea

B. Ammonium nitrate

D. Ammonium chloride

A. Blast furnace gas with oxygen

C. Furnace oil with oxygen

D. Furnace oil with air