Chemistry Heating of a ore below its melting point in the absence of air is known as Refining Calcination Smelting Roasting Refining Calcination Smelting Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant metal in the Earth’s crust is Copper Iron Zinc Aluminium Copper Iron Zinc Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain' is caused due to air - pollution by Carbon monoxide Methane Carbon dioxide Nitrous oxide and sulphur dioxide Carbon monoxide Methane Carbon dioxide Nitrous oxide and sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that is used in the manufacture of vanaspati ghee is : Hydrogen Nitrogen Oxygen Carbon dioxide Hydrogen Nitrogen Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry White lung cancer' is caused by Textiles Asbestos Silica Paper Textiles Asbestos Silica Paper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is 4.05 gram 3.05 gram 5.05 gram 2.05 gram 4.05 gram 3.05 gram 5.05 gram 2.05 gram ANSWER DOWNLOAD EXAMIANS APP
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