Chemistry The lustre of the metals is because of Reflection of light due to the presence of free electrons High polish High density, due to closed packing of atoms Absorption of light due to the presence of cavities Reflection of light due to the presence of free electrons High polish High density, due to closed packing of atoms Absorption of light due to the presence of cavities ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to N2O NO2 SO3 SO2 N2O NO2 SO3 SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry In upper layer of atmosphere ozone is formed by The combination of oxygen molecules Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is not a primary greenhouse gases in the Earth's atmosphere Nitrogen Methane Carbon dioxide Ozone Nitrogen Methane Carbon dioxide Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as preservative for foodstuff ? Glycerine Picric acid Sodium Benzoate Sodium Chloride Glycerine Picric acid Sodium Benzoate Sodium Chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry A fertile soil is likely to have a pH of 14 3 43989 9 14 3 43989 9 ANSWER DOWNLOAD EXAMIANS APP
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