Chemistry Which variety of coal contains recognisable traces of the original plant material ? Peat Bitumen Anthracite Lignite Peat Bitumen Anthracite Lignite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of SO2 layer CO2 layer O 2 layer O3 layer SO2 layer CO2 layer O 2 layer O3 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Combustion of a candle is a/an Photochemical reaction Endothermic reaction Physical change Exothermic reaction Photochemical reaction Endothermic reaction Physical change Exothermic reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The source of energy that causes the least global warming is Natural Gas Geothermal energy Coal Petroleum Natural Gas Geothermal energy Coal Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen has (+) oxidation number only in H2O (2) N2O OF2 C12O H2O (2) N2O OF2 C12O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain' is caused due to air - pollution by Carbon monoxide Nitrous oxide and sulphur dioxide Methane Carbon dioxide Carbon monoxide Nitrous oxide and sulphur dioxide Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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