Chemistry Commercial nitric acid is coloured because it contains dissolved : Coloured impurities Nitrous oxide Oxygen Nitrogen dioxide Coloured impurities Nitrous oxide Oxygen Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver, an alloy, does not contain the metal Silver Nickel Copper Zinc Silver Nickel Copper Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The noble gas used in radiotherapy is Radon Argon Neon Xenon Radon Argon Neon Xenon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as preservative for foodstuff ? Picric acid Sodium Benzoate Glycerine Sodium Chloride Picric acid Sodium Benzoate Glycerine Sodium Chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pollutant from motor car exhaust that causes mental disease is NO2 Hg Lead SO2 NO2 Hg Lead SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The term 'brown air' is used for Photochemical smog Sulphurous smog Industrial smog Acid fumes Photochemical smog Sulphurous smog Industrial smog Acid fumes ANSWER DOWNLOAD EXAMIANS APP
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