Chemistry Iron is extracted from Cinnabar Bauxite Dolomite Haematite Cinnabar Bauxite Dolomite Haematite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Liquid Nitrogen boils at 54 kelvin 77 kelvin 97 Kelvin 82 Kelvin 54 kelvin 77 kelvin 97 Kelvin 82 Kelvin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Oxygen Coloured impurities Nitrogen dioxide Nitrous oxide Oxygen Coloured impurities Nitrogen dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk tastes sour when it is left in open for some time. This happens due to the formation of Citric acid Acetic acid Carbonic acid Lactic acid Citric acid Acetic acid Carbonic acid Lactic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Ozone Oxygen Carbon dioxide Carbon monoxide Ozone Oxygen Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 3 –3 to + 5 –3 to + 4 –3 to + 6 –3 to + 3 –3 to + 5 –3 to + 4 –3 to + 6 ANSWER DOWNLOAD EXAMIANS APP
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