Chemistry Gold dissolves in Hydrochloric acid Nitric acid Aqua-regia Acetic acid Hydrochloric acid Nitric acid Aqua-regia Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of gas constant R in Ergs deg–1 mole–1 is 8.413 × 107 8.314 × 107 8.341 × 107 4.183 × 107 8.413 × 107 8.314 × 107 8.341 × 107 4.183 × 107 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Roasting Refining Smelting Calcination Roasting Refining Smelting Calcination ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore magnetite consists of 3Fe2O3 .. 3H2O Fe3OH4 Fe2O3 FeCO3 3Fe2O3 .. 3H2O Fe3OH4 Fe2O3 FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Piped Natural Gas (PNG) is used for Welding Cooking Anaesthesia Mining Welding Cooking Anaesthesia Mining ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is found in all organic compounds Nitrogen Carbon Oxygen Calcium Nitrogen Carbon Oxygen Calcium ANSWER DOWNLOAD EXAMIANS APP
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