A. Light soda ash
B. Dense soda ash
C. Sodium bicarbonate
D. Dehydrated soda ash
In the Solvay process, the product from the calciner is___________________? Read More »
Chemical Process A. Methyl amine
B. Naphthalene
C. Phenol
D. Xylene
Naphthols are derivatives of________________? Read More »
Chemical Process A. Polyisoprene
B. Neoprene
C. Nitrile-butadiene
D. None of these
Which one of the following is not an elastomer ? Read More »
Chemical Process A. Toluene
B. Ethyl alcohol
C. Naphthalene
D. Benzene
Maleic anhydride is produced by catalytic oxidation of____________________? Read More »
Chemical Process A. Act as an acidifying agent
B. Increase its concentration
C. Increase the amount of molasses
D. Increase the crystal size
SO2 is bubbled through hot sugar cane juice to_______________? Read More »
Chemical Process A. Furnace → converter → absorber
B. Furnace → evaporator → absorber
C. Furnace → converter → evaporator
D. Converter → furnace → absorber
A. As an illuminant
B. For metal cutting/welding
C. Both A. & B.
D. Neither A. nor B.
Reaction of calcium carbide with water produces a gas, which is used_________________? Read More »
Chemical Process A. Catalytic dehydrogenation of ethyl benzene
B. Dehydration of ethyl alcohol followed by hydrogenation
C. Reacting ethylene oxide with acetaldehyde
D. Fermentation of starch
A. Prevent redeposition of soil on cleaned surface
B. Act as optical brightening agent
C. Inhibit corrosion in washing machines made of aluminium
D. None of these
Carboxymethyl cellulose (CMC) is added in detergents to_________________? Read More »
Chemical Process A. Bauxite
B. Silicon carbide
C. Boron carbide
D. Calcium carbide
Carborundum consists mainly of_________________? Read More »
Chemical Process