Chemistry 'Plaster of Paris' is made by partial dehydration of Blue vitriol Gypsum salt Epsom salt Green vitriol Blue vitriol Gypsum salt Epsom salt Green vitriol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lowest layer of earth's atmosphere is Troposphere Mesosphere Ionosphere Stratosphere Troposphere Mesosphere Ionosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stains of rust on clothes can be removed by : Petrol Alcohol H2O2 Oxalic acid Petrol Alcohol H2O2 Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitric acid does not react with Zinc Copper Gold Iron Zinc Copper Gold Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Brass Bronze Silver Copper Brass Bronze Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry In the electroplating of gold, the electrolyte used is Potassium aurocyanide Gold chloride Gold sulphate Gold nitrate Potassium aurocyanide Gold chloride Gold sulphate Gold nitrate ANSWER DOWNLOAD EXAMIANS APP
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