Adjust the pH of the syrup
Remove the coloring matter from the syrup
Reduce the viscosity of the syrup
Improve the rate of crystallisation of sugar
✅ The correct answer is option A.
Chemical Engineering MCQs
Basic oxide is absent in __________ glass.
Flint
Pyrex
Quartz
All of the above
✅ The correct answer is option C.
Hydrogenation of oil/fat does not
Improve its resistance to rancid oxidation
Raise its melting point
Remove double bonds
None of these
✅ The correct answer is option D.
Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to
Reduce its viscosity
Increase its viscosity
Reduce the variation in its viscosity with temperature
Increase the variation in its viscosity with temperature
✅ The correct answer is option C.
Use of water having dissolved oxygen in boilers promotes
Corrosion
Sequestration
Scale formation
None of these
✅ The correct answer is option A.
Thermoplastic materials
Do not soften on application of heat
Are heavily branched molecules
Are solvent insoluble
None of these
✅ The correct answer is option D.
Which oil is preferred for paint manufacture?
Drying oil
Non-drying oil
Semi-drying oil
Saturated oil
✅ The correct answer is option A.
Enzymes are organic catalysts used in the __________ reactions.
Chemical
Biochemical
Photochemical
Electrochemical
✅ The correct answer is option B.
Vinyl chloride (CH₂ = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of
4 kgf/cm² & 500°C
10 kgf/cm² & 1000°C
40 kg/cm² & 200°C
100 kgi/cm² & 500°C
✅ The correct answer is option A.
Which of the following is not a raw material used for the manufacture of ordinary glass?
Iron oxide
Soda ash
Limestone
Silica
✅ The correct answer is option A.