A. Are soluble in CS2
B. Burns when heated in air
C. Reacts with hot caustic soda solution to give Phosphine
D. All A., B., and C.
A. Nitrogenous fertilisers
B. Phosphatic fertilisers
C. Potassic fertiliser
D. None of these
A. Ammonia
B. Urea
C. Superphosphate
D. Triple superphosphate
A. Meta-phosphoric acid
B. Pyrophosphoric acid
C. No change in it
D. None of these
A. Increase its nitrogen content
B. Cut down its production cost
C. Avoid the risk of explosion
D. Add extra nutrient as fertiliser
A. Calcium sulphate
B. Calcium phosphate
C. Calcium carbonate
D. Sodium phosphate
A. Isopropyl alcohol
B. Butyl alcohol
C. Toluene
D. Hexane
A. Ortho-phosphoric acid
B. Simple superphosphate
C. Triple superphosphate
D. Red phosphorous
A. Steam reforming
B. Hydro-cracking
C. Partial oxidation
D. Hydrogenation
A. A mixture of K2CO3 and As2O3
B. K2SO4
C. A mixture of Na2CO3 and As2O3
D. Na2SO4