Chemistry Brass gets discoloured in air due to constant exposure in presence of: Aluminium phosphide Hydrogen sulphide Aluminium sulphide Hydrogenated wafers Aluminium phosphide Hydrogen sulphide Aluminium sulphide Hydrogenated wafers ANSWER DOWNLOAD EXAMIANS APP
Chemistry The alkaloid naturally found in coffee, cocoa and cola nut is Morphine Tannin Caffeine Cocaine Morphine Tannin Caffeine Cocaine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silk fibre chemically is : Cellulose Protein Carbohydrate Fat Cellulose Protein Carbohydrate Fat ANSWER DOWNLOAD EXAMIANS APP
Chemistry Petroleum consists of a mixture of Carbides Carbonates Hydrocarbons Carbohydrates Carbides Carbonates Hydrocarbons Carbohydrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry The advantage of detergents over soaps is Detergents are soluble in water Detergents could not give much lather Soaps give lather with only soft water Detergents give lather even with hard water Detergents are soluble in water Detergents could not give much lather Soaps give lather with only soft water Detergents give lather even with hard water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Colloids can be purified by Dialysis Condensation Condensation Condensation Dialysis Condensation Condensation Condensation ANSWER DOWNLOAD EXAMIANS APP
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