Chemistry Oxide of sulphur present in the atmosphere are washed down by rains to cause : Industrial smog formation Eutrophication in lakes Depletion of fossil fuel reserves Lowering of pH of soil Industrial smog formation Eutrophication in lakes Depletion of fossil fuel reserves Lowering of pH of soil ANSWER DOWNLOAD EXAMIANS APP
Chemistry The third shell of an atom can have a maximum of ______ electrons 18 21 13 15 18 21 13 15 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a bond is formed between two atoms, the energy of the system will Increase Decrease May increase or decrease Remain the same Increase Decrease May increase or decrease Remain the same ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the stratosphere is mainly caused by NO NO2 SO2 Chlorogluorocarbons NO NO2 SO2 Chlorogluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The maximum number of covalent formed by nitrogen is 3 1 2 4 3 1 2 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method of concentrating the ore which makes use of the difference in density between ore and impurities is called magnetic separation leaching liquation levigation magnetic separation leaching liquation levigation ANSWER DOWNLOAD EXAMIANS APP
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