401. The most widely used coagulant for removing suspended impurities from water is September 7, 2025 by Admin Bleaching powder Chlorine Calcium sulphate Alum ✅ The correct answer is option D.
402. Coal tar is used as a September 7, 2025 by Admin 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 September 7, 2025 by Admin A natural rubber A synthetic polymer A synthetic monomer Another name of silicone rubber ✅ The correct answer is option B.
404. Analgesic drugs are September 7, 2025 by Admin 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 September 7, 2025 by Admin Acrylonitrile and butadiene Acrylonitrile and styrene Isobutylene and isoprene None of these ✅ The correct answer is option A.
406. Celluloid is chemically September 7, 2025 by Admin 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? September 7, 2025 by Admin Lauric acid Palmitic acid Stearic acid Oleic acid ✅ The correct answer is option D.
408. Bakelite is September 7, 2025 by Admin 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 September 7, 2025 by Admin Polyurethane Silicone Teflon Epoxy resin ✅ The correct answer is option C.
410. Fats as compared to oils have September 7, 2025 by Admin 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.