Chemistry Sulphur dioxide bleaches colouring matter by : Reduction Decomposition Oxidation Dehydration Reduction Decomposition Oxidation Dehydration ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Helium Hydrogen Nitrogen Air Helium Hydrogen Nitrogen Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brine refers to : Pure water Sweet water Salt water Starch water Pure water Sweet water Salt water Starch water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O2 and O3 O2 and N2 Oxides of N and S O3 and N2 O2 and O3 O2 and N2 Oxides of N and S O3 and N2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The minimum energy required for an effective collision is Internal energy Threshold energy Activation energy Free energy Internal energy Threshold energy Activation energy Free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry The heat energy produced when the human body metabolises 1 gram of fat is 29 KJ 30 KJ 39 KJ 1 KJ 29 KJ 30 KJ 39 KJ 1 KJ ANSWER DOWNLOAD EXAMIANS APP
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