Chemistry The major constituent of air is nitrogen hydrogen oxygen carbon dioxide nitrogen hydrogen oxygen carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Submarines move under water. They have engines that run on Petrol and oxygen Steam Diesel Batteries Petrol and oxygen Steam Diesel Batteries ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid which is secreted by the glands in the stomach wall is Hydrochloric acid Sulphuric acid Phosphoric acid Nitric acid Hydrochloric acid Sulphuric acid Phosphoric acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conversion of chemical energy into electrical energy occurs in A battery Dynamo Atomic bombs Electric heaters A battery Dynamo Atomic bombs Electric heaters ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which mineral is the ore of aluminium ? Haematite Siderite Bauxite Magnetite Haematite Siderite Bauxite Magnetite ANSWER DOWNLOAD EXAMIANS APP
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