Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Nitrous oxide Sulphur dioxide Chlorofluorocarbon Carbon dioxide Nitrous oxide Sulphur dioxide Chlorofluorocarbon Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder metal is an alloy of Copper and zinc Copper and tin Lead and tin Lead and antimony Copper and zinc Copper and tin Lead and tin Lead and antimony ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silk fibre chemically is : Cellulose Fat Protein Carbohydrate Cellulose Fat Protein Carbohydrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a spoon is to be electroplated with nickel the spoon is Made cathode and a pure nickel red, the anode Made anode and a pure nickel rod, the cathode Coated with nickel sulphate and dried Dipped in a nickel sulphate solution Made cathode and a pure nickel red, the anode Made anode and a pure nickel rod, the cathode Coated with nickel sulphate and dried Dipped in a nickel sulphate solution ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore magnetite consists of Fe2O3 3Fe2O3 .. 3H2O Fe3OH4 FeCO3 Fe2O3 3Fe2O3 .. 3H2O Fe3OH4 FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following alloy is used in making magnet ? Stainless steel Magnalium Duralumin Alnico Stainless steel Magnalium Duralumin Alnico ANSWER DOWNLOAD EXAMIANS APP
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