401. The most widely used coagulant for removing suspended impurities from water is
Bleaching powder
Chlorine
Calcium sulphate
Alum
✅ The correct answer is option D.
Chemical Process MCQs
402. Coal tar is used as a
Binding material for coal briquettes
Fuel in rotary kiln
Binder in making carbon electrodes
All of the above
✅ The correct answer is option D.
403. Styrene butadiene rubber (SBR) is
A natural rubber
A synthetic polymer
A synthetic monomer
Another name of silicone rubber
✅ The correct answer is option B.
404. Analgesic drugs are
Pain relievers
Antibiotics
Used in the treatment of T.B.
Used in the treatment of typhiod
✅ The correct answer is option A.
405. Nitrile rubber is produced by the polymerisation of
Acrylonitrile and butadiene
Acrylonitrile and styrene
Isobutylene and isoprene
None of these
✅ The correct answer is option A.
406. Celluloid is chemically
Cellulose acetate
Regenerated cellulose
Cellulose nitrate
Cellulose acetate butyrate
✅ The correct answer is option C.
407. Which of the following is an unsaturated fatty acid?
Lauric acid
Palmitic acid
Stearic acid
Oleic acid
✅ The correct answer is option D.
408. Bakelite is
Same as poly tetrafluoroethylene (PTFE)
An inorganic polymer
Same as thermosetting phenol-formaldehyde
Not a polymer
✅ The correct answer is option C.
409. Polymerisation product of C₂F4 (carbon tetraflouride) is called P.T.F.E (poly chloro tetra flouro ethylene). It is also called
Polyurethane
Silicone
Teflon
Epoxy resin
✅ The correct answer is option C.
410. Fats as compared to oils have
More unsaturated glycerides of fatty acids
Less unsaturated glycerides of fatty acids
Much higher reactivity to oxygen
Lower melting point
✅ The correct answer is option B.