Chemistry Main source of lead pollution is from Leaded gasoline Sewage Tobacco Insecticides Leaded gasoline Sewage Tobacco Insecticides ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most malleable metal is platinum silver iron gold platinum silver iron gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry A substance which readily forms colloidal solution in contact with water is called Hydrophilic colloid Extrinsic colloid Hydrophobic colloid Associated colloid Hydrophilic colloid Extrinsic colloid Hydrophobic colloid Associated colloid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The rusting of iron is a/an Electrical change Physical change Electrochemical change None of these Electrical change Physical change Electrochemical change None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Chlorination Oxidation followed by settling and filtration Lime soda process or manganese zeolite process Ion exchange process Chlorination Oxidation followed by settling and filtration Lime soda process or manganese zeolite process Ion exchange process ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stalactites and Stalagmites form due to the precipitation of : MgCl2 MgCO3 CaCl2 CaCO3 MgCl2 MgCO3 CaCl2 CaCO3 ANSWER DOWNLOAD EXAMIANS APP
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