Molecular weight of plastics ranges from ______________________?
A. 5000 to 10000
B. 20000 to 250000
C. 500 to 5000
D. 106 to 109
Chemical Process
Cation exchanger is regenerated usually with_________________________?
Cation exchanger is regenerated usually with_________________________?
A. NaOH
B. H2SO4
C. Hydrazine
D. Alum solution
Major component of flint glass is_____________________?
Major component of flint glass is_____________________?
A. Lead oxide
B. Silica
C. Alumina
D. Soda
Starting material for the production of styrene butadiene rubber (SBR) is________________?
Starting material for the production of styrene butadiene rubber (SBR) is________________?
A. Ethyl alcohol
B. Ethylene
C. Both A. & B.
D. Neither A. nor B.
______________ Nature of hypo (sodium thiosulphate) makes it useful in photography ?
______________ Nature of hypo (sodium thiosulphate) makes it useful in photography ?
A. Oxidising
B. Reducing
C. Complex forming
D. Photochemical
The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an ______________ detergent ?
The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an ______________ detergent ?
A. Cationic
B. Anionic
C. Amphoteric
D. Semi polar
Industrial production of chloroform requires acetone and_____________________?
Industrial production of chloroform requires acetone and_____________________?
A. Phosgene
B. Calcium hypochlorite
C. Chlorine
D. Ammonium chloride
The most reactive allotropic form of phosphorus is __________________ phosphorus?
The most reactive allotropic form of phosphorus is __________________ phosphorus?
A. Red
B. Yellow
C. Violet
D. Black
The manufacture of Kraft pulp is done by a/an _________________ process?
The manufacture of Kraft pulp is done by a/an _________________ process?
A. Alkaline
B. Acidic
C. Neutral
D. None of these
Flux addition during smelting of ore is done to___________________?
Flux addition during smelting of ore is done to___________________?
A. Remove impurities/gangue
B. Enhance rate of reaction
C. Accelerate reduction of ore
D. Separate slag from metal