Chemistry The smog is essentially caused by the presence of O2 and N2 O2 and O3 O3 and N2 Oxides of N and S O2 and N2 O2 and O3 O3 and N2 Oxides of N and S ANSWER DOWNLOAD EXAMIANS APP
Chemistry Combustion of a candle is a/an Exothermic reaction Physical change Endothermic reaction Photochemical reaction Exothermic reaction Physical change Endothermic reaction Photochemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a ‘green house gas’ ? Methane Carbon dioxide Chlorofluorocarbons Nitrogen Methane Carbon dioxide Chlorofluorocarbons Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pollutant responsible for ozone holes is ________ SO2 CO2 CFC CO SO2 CO2 CFC CO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.(A) Arsenic (B) Sorbitol (C) Fluoride (D) Formaldehyde (E) Uranium A, B, C, D and E A, C and E B, D and E A and C A, B, C, D and E A, C and E B, D and E A and C ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide bleaches colouring matter by : Reduction Oxidation Decomposition Dehydration Reduction Oxidation Decomposition Dehydration ANSWER DOWNLOAD EXAMIANS APP
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