Chemistry Gold dissolves in Acetic acid Nitric acid Aqua-regia Hydrochloric acid Acetic acid Nitric acid Aqua-regia Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide bleaches colouring matter by : Dehydration Reduction Decomposition Oxidation Dehydration Reduction Decomposition Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Magnesium, calcium and tin Calcium, magnesium and iron Iron, tin and calcium Magnesium, tin and iron Magnesium, calcium and tin Calcium, magnesium and iron Iron, tin and calcium Magnesium, tin and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry A polymeric substance used to make parachute is Rayon Terylene Cotton Viscose Rayon Terylene Cotton Viscose ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of carbon in cost iron is : 0.5 to 1.5 0.01 to 0.25 3 to 5 6 to 8 0.5 to 1.5 0.01 to 0.25 3 to 5 6 to 8 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Oxidation Electrolysis Zone refining Roasting Oxidation Electrolysis Zone refining Roasting ANSWER DOWNLOAD EXAMIANS APP
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