Chemistry The maximum number of covalent formed by nitrogen is 3 4 2 1 3 4 2 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of Ozone layer is mainly due to Radioactive rays Chlorofluorocarbons Aviation fuels Volcanic eruptions Radioactive rays Chlorofluorocarbons Aviation fuels Volcanic eruptions ANSWER DOWNLOAD EXAMIANS APP
Chemistry The structure of NaCl crystal is Body centered cubic Square planar Face centered cubic Octahedral Body centered cubic Square planar Face centered cubic Octahedral ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxide of sulphur present in the atmosphere are washed down by rains to cause : Eutrophication in lakes Depletion of fossil fuel reserves Industrial smog formation Lowering of pH of soil Eutrophication in lakes Depletion of fossil fuel reserves Industrial smog formation Lowering of pH of soil ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carbon monoxide is an inflammable gas. Which one of the following is also inflammable? Hydrogen Nitrogen Helium Oxygen Hydrogen Nitrogen Helium Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main pollutants released from iron and steel industry are CO, CO2 and SO2 CO2, NO2 and SO3 NO, SO3 and H2S CO2, H2S and NO2 CO, CO2 and SO2 CO2, NO2 and SO3 NO, SO3 and H2S CO2, H2S and NO2 ANSWER DOWNLOAD EXAMIANS APP
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