Chemistry Combustion of a candle is a/an Physical change Endothermic reaction Exothermic reaction Photochemical reaction Physical change Endothermic reaction Exothermic reaction Photochemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant metal in the Earth’s crust is Copper Iron Aluminium Zinc Copper Iron Aluminium Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver gets corroded due to ________ in air. Carbon dioxide Nitrogen Hydrogen Sulphide Oxygen Carbon dioxide Nitrogen Hydrogen Sulphide Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Wood spirit is Ethyl alcohol Methyl alcohol Propyl alcohol Butyl alcohol Ethyl alcohol Methyl alcohol Propyl alcohol Butyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hard water and soft water can be distinguished by using Detergent Ordinary soap Liquid soap Dilute acid Detergent Ordinary soap Liquid soap Dilute acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet rays can be used in water treatment as Hydrolyser Flocculator Disinfectant Precipitator Hydrolyser Flocculator Disinfectant Precipitator ANSWER DOWNLOAD EXAMIANS APP
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