531. Glycerine is a by-product of the __________ industry.
Soap
Detergent
Oil hydrogenation
Paint
✅ The correct answer is option A.
Chemical Process MCQs
532. Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces
Nylon-6
Dacron
Polyester
PVC
✅ The correct answer is option B.
533. Chemical name of Grignard reagent is
Sodium thiosulphate
Ethyl magnesium chloride
Sodium sulphite
Sodium bicarbonate
✅ The correct answer is option B.
534. Hydrazine (N₂H₄) is used mainly as a/an
Explosive
Rocket fuel
Detergents additive
None of these
✅ The correct answer is option B.
535. Pick out the endothermic reaction out of the following.
C+1/2O₂ = CO
CO + 3H₂ = CH₄ + H₂O
CaCO₃ = CaO + CO₂
CO +1/2O₂ = CO₂
✅ The correct answer is option C.
536. Hydrophilic group of a soap or detergent solution is
Water hating
Soil loving
Water loving
None of these
✅ The correct answer is option C.
537. Roasting of metallurgical ores is done mainly to
Dehydrate it
Sinter the ore
Remove CO₂ & H₂O
Remove arsenic & sulphur
✅ The correct answer is option D.
538. Frasch process is for
Making oxygen
Producing helium
Mining sulphur
Making nitrogen
✅ The correct answer is option C.
539. Which of the following, when pyrolysed, produces perchloro-ethylene?
Ethylene dichloride
Chlorobenzene
Carbon tetrachloride
Chlorinated paraffin
✅ The correct answer is option C.
540. Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at
1 atm & 100°C
5 atm & 275°C
100 atm & 500°C
50 atm & 1000°C
✅ The correct answer is option B.