Chemistry Ozone depletion in the stratosphere is mainly caused by NO NO2 Chlorogluorocarbons SO2 NO NO2 Chlorogluorocarbons SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Sulphuric acid Citric acid Lactic acid Oxalic acid Sulphuric acid Citric acid Lactic acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Lead peroxide and lead Iron and cadmium Zinc and carbon Nickel and cadmium Lead peroxide and lead Iron and cadmium Zinc and carbon Nickel and cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of aluminium is magnetite haematite bauxite monazite magnetite haematite bauxite monazite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which variety of coal contains recognisable traces of the original plant material ? Lignite Bitumen Peat Anthracite Lignite Bitumen Peat Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of major air pollutant is Helium Carbon monoxide Carbon dioxide Oxygen Helium Carbon monoxide Carbon dioxide Oxygen ANSWER DOWNLOAD EXAMIANS APP