B. H4P2O7

C. H3PO4

D. Same as that of Pyrophosphoric acid

A. Dilute HCl

B. Dilute H2SO4

C. K2CO3 solution

A. Ammonia

B. Triple superphosphate

D. Superphosphate

B. 43% N2 and 13% K2O

C. 43% N2 and 13% P2O5

D. 43% K2O and 43% P2O5

B. None of these

C. Biuret

D. Ammonium carbonate

A. CO2 & H2SO4

B. HNO3 & NH4Cl

D. CO2 & KNO3

B. The phosphorous nutrient makes the plant stem stronger and increases its branches

C. A straight fertiliser contains only one nutrient

D. Calcium cyanamide is used as weed killer in onion fields

A. Requires lower capital investment in the plant

B. Is very costly

C. Uses lower grade phosphate rock

B. Bauxite

C. Cobalt

D. Chromium

B. Cryogenic removal of H2 from coke oven gas

C. Natural gas cracking

D. Steam reforming of naphtha

A. Exothermic

B. Catalytic

D. Autocatalytic

A. CAN

C. Superphosphate

D. Urea

A. 50

B. 65

D. 5

A. Nitrogen fixation means the process of bringing atmospheric nitrogen into combination i.e.

B. Apatite is the principal material present in phosphate rock which is chemically Ca10 (PO4)6 (F,

C. er water

D. o nitrogen compound form

E. OH)

F. Yellow phosphorous which is the most reactive allotropic form of phosphorous is transported

A. Nickel

B. Vanadium pentoxide

C. Silica gel

A. Space velocity of gas is very low resulting in decreased conversion

C. Very high pressure is required resulting in costly pressure vessel

D. None of these

A. None of these

C. Aluminium chloride

D. Acetic acid

A. Dehydrogenated

C. Liquefied

D. Hydrogenated

A. Phosphatic

B. Nitrogenous

D. Complex

A. Liquid ammonia

C. Ammonium sulphate

D. Urea

A. 50

B. 10

D. 70

B. Ammonium phosphate

C. Calcium fluoride

D. Calcium phosphate

B. No change in it

C. Meta-phosphoric acid

D. None of these

A. Reaction of NH3 with HNO3 to produce (NH4)2NO3 is endothermic

C. al feed rate</strong>

D. Biuret (an intermediate during urea manufacture) is toxic to seeds and animals

E. Both B. and C.

A. Partial oxidation

B. Hydrogenation

D. Thermal cracking

B. None of these

C. Autocatalytic

D. Endothermic

B. KNO3

C. NO2

D. NHO3

A. Red phosphorous

B. Ortho-phosphoric acid

D. Triple superphosphate

A. 75-80

C. > 98

D. 25-28

A. Add extra nutrient as fertiliser

B. Cut down its production cost

C. Increase its nitrogen content

A. Hydrogenation

B. Hydro-cracking

C. Steam reforming

A. Remove excess poisonous gases

B. Remove uncondensed ammonia vapour

C. Maintain inert gas concentration within a limit

A. Chemically unreactive nature of red phosphorous is due to its polymeric structure

B. sphorous by vaporisation followed by condensation

C. Green acid is the other name of phosphoric acid produced by the reaction of phosphate rock

D. p; sulphuric acid

E. Red phosphorous, which is used in the manufacture of safety matches, is converted into white

A. Uhde

B. Kellogg

C. Fauser-Montecatini

A. Endothermic

B. Autocatalytic

C. Catalytic

B. Are soluble in CS2

C. All A., B., and C.

D. Reacts with hot caustic soda solution to give Phosphine

A. Isopropyl alcohol

C. Toluene

D. Hexane

A. Calcium carbonate

C. Sodium phosphate

D. Calcium sulphate

A. Is in short supply

C. Has a pungent smell

D. Is toxic and highly corrosive

A. 3Ca3(PO4)2

C. Ca(H2PO4)2

D. Ca(PO3)2

B. Sugar of fruits & vegetables

C. Fibrous materials of plants

D. Starches of potatoes & grains

B. Autocatalytic

C. Endothermic

D. Non-catalytic

A. Mono-calcium phosphate

C. None of these

D. Fluorspar