Density difference
Wetting characteristics
Terminal velocities
None of these
✅ The correct answer is option B.
Chemical Process MCQs
Phosphoric acid is prepared from
Cryolite
Chalcopyrite
Rock phosphate
None of these
✅ The correct answer is option C.
Favourable conditions for the liquefaction of gases in general are
High pressure & low temperature
Low pressure & high temperature
High pressure & high temperature
Low pressure & low temperature
✅ The correct answer is option A.
Glycerine is recovered from lye by
Evaporation followed by vacuum distillation
Liquid extraction technique
Extractive distillation technique
None of these
✅ The correct answer is option A.
Dehydrogenation of isopropanol produces
Propyl alcohol
Acetone
Trichloroethylene
Formaldehyde
✅ The correct answer is option B.
The purpose of adding Na₂CO₃ to water of low alkalinity is to
Permit the use of alum as a coagulant
Increase the softening capacity of zeolite
Facilitate easy regeneration of zeolite
All of the above
✅ The correct answer is option A.
Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.
1
2.5
5
10
✅ The correct answer is option B.
The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at
SASOL (in South Africa)
Redcar (U.K.)
Los-Angles (U.S.A.)
Trombay (India)
✅ The correct answer is option A.
Maleic anhydride is produced by catalytic oxidation of
Toluene
Ethyl alcohol
Naphthalene
Benzene
✅ The correct answer is option D.
The most commonly used substance to speed up the sedimentation of sewage is
Lime
Sulphuric acid
Chlorine
Sodium bisulphite
✅ The correct answer is option A.