Chemistry The iron ore which contains 72% of iron is : Limonite Haematite Magnetite Siderite Limonite Haematite Magnetite Siderite ANSWER DOWNLOAD EXAMIANS APP
Chemistry In the electroplating of gold, the electrolyte used is Gold chloride Gold sulphate Gold nitrate Potassium aurocyanide Gold chloride Gold sulphate Gold nitrate Potassium aurocyanide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is not a pure form of carbon Gold Diamond Coal Graphite Gold Diamond Coal Graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Catalyst is a substance which Decreases the rate of reaction None of these Increases the rate of the reaction Has no action on the rate of the reaction Decreases the rate of reaction None of these Increases the rate of the reaction Has no action on the rate of the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Refining Smelting Calcination Roasting Refining Smelting Calcination Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to SO2 N2O NO2 SO3 SO2 N2O NO2 SO3 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS