Chemistry The iron ore which contains 72% of iron is : Haematite Siderite Limonite Magnetite Haematite Siderite Limonite Magnetite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a commercial source of energy? Petroleum Coal Firewood Natural Gas Petroleum Coal Firewood Natural Gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stalactites and Stalagmites form due to the precipitation of : CaCO3 MgCl2 MgCO3 CaCl2 CaCO3 MgCl2 MgCO3 CaCl2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most common cause of pollution of air is Sulphur dioxide Carbon monoxide Smoke Carbon dioxide Sulphur dioxide Carbon monoxide Smoke Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Iodine and water Glucose isomerase Mild sulphuric acid Hydrogen peroxide Iodine and water Glucose isomerase Mild sulphuric acid Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Concentration of a material which is lethal to 50% animal is called LD50 LC50 ADI NOAEL LD50 LC50 ADI NOAEL ANSWER DOWNLOAD EXAMIANS APP
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