A. Gypsum
B. Feldspar
C. Galena
D. Bauxite
Related Mcqs:
- Synthetic glycerine is produced from___________________?
A. Toluene
B. Phenol
C. Propylene
D. Naphthalene - Styrene (a monomer for the production of polystyrene) is commercially produced by ____________________?
A. Catalytic dehydrogenation of ethyl benzene
B. Dehydration of ethyl alcohol followed by hydrogenation
C. Reacting ethylene oxide with acetaldehyde
D. Fermentation of starch - Commercially ethylene is produced from naphtha by ______________________?
A. Catalytic cracking
B. Catalytic dehydrogenation
C. Pyrolysis
D. Hydrocracking - Which of the following is not produced commercially from sea water ?
A. Magnesium & potassium compounds
B. Common salt
C. Bromine
D. Iodine - Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by _____________________?
A. Iron-steam reaction
B. Electrolysis of water
C. Steam reforming of naphtha
D. Its cryogenic separation from coke oven gas - Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on ____________________?
A. Slaked lime
B. Soda lime
C. Calcium perchlorate
D. None of these - Starting raw material for the manufacture of alum is_________________?
A. Alumina
B. Gypsum
C. Bauxite
D. Ammonium bicarbonate - Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove____________________?
A. Colour
B. Turbidity
C. Bacteria
D. All A , B. and C. - Chemical name of ‘alum’ is__________________?
A. Barium sulphate
B. Aluminium sulphate
C. Aluminium chloride
D. Calcium sulphate - P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as____________________?
A. Bakelite
B. Neoprene
C. Teflon
D. Nylon-66
