Chemistry Which one of the following group of gases contributes to the 'Green House Effect'? Carbon monoxide and Sulphur dioxide Ammonia and Ozone Carbon dioxide and Methane Carbon tetraflouride and Nitrous oxide Carbon monoxide and Sulphur dioxide Ammonia and Ozone Carbon dioxide and Methane Carbon tetraflouride and Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Substance used as an anti freeze in radiators of automobiles is : Methyl alcohol and H2O Ethyl alcohol Ethyl alcohol and H2O Methyl alcohol Methyl alcohol and H2O Ethyl alcohol Ethyl alcohol and H2O Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is liquid non-metal ? Alcohol Mercury Bromine Water Alcohol Mercury Bromine Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following coal contains 90 per cent of carbon? Lignite Bitumen Anthracite Peat Lignite Bitumen Anthracite Peat ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Carbon monoxide Carbon dioxide Ozone Water vapour Carbon monoxide Carbon dioxide Ozone Water vapour ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Tritium Radium Phosphorus-31 Carbon-14 Tritium Radium Phosphorus-31 Carbon-14 ANSWER DOWNLOAD EXAMIANS APP
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