Chemistry Highest percentage of carbon is found in which form of coal? Lignite Anthracite Bituminous Peat Lignite Anthracite Bituminous Peat ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? Black phosphorus Violet phosphorus White phosphorus Red phosphorus Black phosphorus Violet phosphorus White phosphorus Red phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of lead is Magnetite Siderite Galena Pyrolusite Magnetite Siderite Galena Pyrolusite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pollutant responsible for ozone holes is ________ CFC CO SO2 CO2 CFC CO SO2 CO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be 2 : 16 : 1 1 : 1 : 1 1 : 16 : 2 2 : 16 : 2 2 : 16 : 1 1 : 1 : 1 1 : 16 : 2 2 : 16 : 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aluminium can be purified by Ozonolysis Electrolysis Oxidation Distillation Ozonolysis Electrolysis Oxidation Distillation ANSWER DOWNLOAD EXAMIANS APP
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