Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Helium Methane Nitrogen Hydrogen Helium Methane Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Rain water Sea water River water Lake water Rain water Sea water River water Lake water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The manufacture of iron from iron ore involves the process of Electrolysis Oxidation Reduction Fractional distillation Electrolysis Oxidation Reduction Fractional distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry If there is one million Mg2+ ions in MgCl2, how many chloride ions are there? Ten million Half a million One million Two million Ten million Half a million One million Two million ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk tastes sour when it is left in open for some time. This happens due to the formation of Lactic acid Carbonic acid Acetic acid Citric acid Lactic acid Carbonic acid Acetic acid Citric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pair of compounds used as anaesthetic in medicines : Nitrogen dioxide, ether Ether, Ammonia Chloroform, Nitrogen dioxide Nitrous oxide, Chloroform Nitrogen dioxide, ether Ether, Ammonia Chloroform, Nitrogen dioxide Nitrous oxide, Chloroform ANSWER DOWNLOAD EXAMIANS APP
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