Chemistry Of the following, which one pollutes the air of a big city ? Lead Chromium Cadmium Copper Lead Chromium Cadmium Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Chlorination Ion exchange process Oxidation followed by settling and filtration Lime soda process or manganese zeolite process Chlorination Ion exchange process Oxidation followed by settling and filtration Lime soda process or manganese zeolite process ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electric fuse is an alloy of Copper and iron Tin and lead Zinc and lead Carbon and tin Copper and iron Tin and lead Zinc and lead Carbon and tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the stratosphere is mainly caused by NO SO2 NO2 Chlorogluorocarbons NO SO2 NO2 Chlorogluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two elements which can form a large number of compounds are Carbon and Nitrogen Carbon and Hydrogen Carbon and Oxygen Carbon and Sulphur Carbon and Nitrogen Carbon and Hydrogen Carbon and Oxygen Carbon and Sulphur ANSWER DOWNLOAD EXAMIANS APP
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