Chemistry Which among the following coal contains 90 per cent of carbon? Bitumen Peat Lignite Anthracite Bitumen Peat Lignite Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The hardest form of carbon is charcoal graphite coke diamond charcoal graphite coke diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acts as promoter for iron in Haber's process Mn Mg W Mo Mn Mg W Mo ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pollutant responsible for ozone holes is ________ CFC SO2 CO2 CO CFC SO2 CO2 CO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a ‘green house gas’ ? Chlorofluorocarbons Methane Nitrogen Carbon dioxide Chlorofluorocarbons Methane Nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to SO3 SO2 NO2 N2O SO3 SO2 NO2 N2O ANSWER DOWNLOAD EXAMIANS APP
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