Chemistry Burning pyrites ore gives out Sulphur dioxide gas Nitric oxide gas Nitrogen dioxide gas Carbon dioxide gas Sulphur dioxide gas Nitric oxide gas Nitrogen dioxide gas Carbon dioxide gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance which does not expand on going from liquid state to solid state is Water Type metal Cast-iron Aluminium Water Type metal Cast-iron Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lowest layer of earth's atmosphere is Troposphere Ionosphere Mesosphere Stratosphere Troposphere Ionosphere Mesosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is 6.023 × 1023 '6.023 × 10–23 6.023 × 1020 '6.023 × 10–20 6.023 × 1023 '6.023 × 10–23 6.023 × 1020 '6.023 × 10–20 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? Photochemical smog SO2 Dust particles NO2 Photochemical smog SO2 Dust particles NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry For extinguishing fire, we use Carbon Monoxide Carbon Dioxide Hydrogen Marsh gas Carbon Monoxide Carbon Dioxide Hydrogen Marsh gas ANSWER DOWNLOAD EXAMIANS APP
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