Chemistry Lead pencil contains Lead sulphide Graphite Ferrous sulphide Lead Lead sulphide Graphite Ferrous sulphide Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a fertilizer? Ammonium sulphate Potassium nitrate Calcium sulphate Calcium ammonium nitrate Ammonium sulphate Potassium nitrate Calcium sulphate Calcium ammonium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main source of carbon monoxide is Fuel combustion Industrial process Transportation Solid waste disposal Fuel combustion Industrial process Transportation Solid waste disposal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Thermal electricity is generated by using which of these ? Coal only None of these Coal and Natural Gas only Coal, Natural Gas and Petroleum Coal only None of these Coal and Natural Gas only Coal, Natural Gas and Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of Ozone layer is mainly due to Chlorofluorocarbons Volcanic eruptions Aviation fuels Radioactive rays Chlorofluorocarbons Volcanic eruptions Aviation fuels Radioactive rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.509 0.727 0.305 0.658 0.509 0.727 0.305 0.658 ANSWER DOWNLOAD EXAMIANS APP
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