- (A) 1 to 5
- (B) 5 to 10
- (C) 15 to 20
- (D) 20 to 30
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- (A) Colloidal impurities
- (B) Dissolved oxygen
- (C) Turbidity
- (D) Chlorinous taste
- (A) Pyrex
- (B) Soda
- (C) Flint
- (D) Crooke’s
- (A) CO and H2
- (B) N2 and H2
- (C) H2, CH4 and CO
- (D) CO2 and H2
- (A) Titanium dioxide
- (B) Ferrous sulphate
- (C) Lead chromates
- (D) Zinc sulphides
- (A) Explosive
- (B) Rocket fuel
- (C) Detergents additive
- (D) None of these
- (A) Condensation product of Hexamethylene diamine and adipic acid
- (B) Thermosetting material
- (C) Condensation product of dimethyl terephthalate and ethylene glycol
- (D) None of these
- (A) Colloids
- (B) Gel
- (C) Butter
- (D) Emulsion
- (A) Polyamide
- (B) Thermosetting resin
- (C) Polyester
- (D) None of these
- (A) Spraying 66° Be H2SO4 counter current to the flow of the gas
- (B) Passing it through a bed of diatomaceous earth
- (C) Passing it through a bed of silica gel
- (D) None of these
