Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Hydrogen peroxide Ozone Barium peroxide Sodium peroxide Hydrogen peroxide Ozone Barium peroxide Sodium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Philosopher’s wool is chemically Magnesium oxide Aluminium oxide Calcium oxide Zinc oxide Magnesium oxide Aluminium oxide Calcium oxide Zinc oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The manufacture of iron from iron ore involves the process of Oxidation Reduction Electrolysis Fractional distillation Oxidation Reduction Electrolysis Fractional distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Glycol is used to manufacture which of the following ? Artificial silk Nylon Terylene Rubber Artificial silk Nylon Terylene Rubber ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is usually a mixture of : Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate Calcium silicate and calcium ferrate Lime stone and silicon dioxide Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate Calcium silicate and calcium ferrate Lime stone and silicon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pollutants is main product of automobile exhaust ? CO2 CO NO Hydrocarbons CO2 CO NO Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
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