Chemistry The major constituent of air is carbon dioxide oxygen hydrogen nitrogen carbon dioxide oxygen hydrogen nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conversion of chemical energy into electrical energy occurs in Dynamo Atomic bombs Electric heaters A battery Dynamo Atomic bombs Electric heaters A battery ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mineral containing both magnesium and calcium is carnallite dolomite calcite magnesite carnallite dolomite calcite magnesite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as filler in tyre of rubber ? Coke Coal Carbon black Graphite Coke Coal Carbon black Graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Soap is prepared by boiling caustic soda with Fats Kerosene oil Alcohol Glycerine Fats Kerosene oil Alcohol Glycerine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? Aluminium sulphate Aluminium powder None of these Solder Aluminium sulphate Aluminium powder None of these Solder ANSWER DOWNLOAD EXAMIANS APP
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