Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Magnesium None of these Calcium Manganese Magnesium None of these Calcium Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is known as carbolic acid? Oxalic acid Ethanol Acetic acid Phenol Oxalic acid Ethanol Acetic acid Phenol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Ion exchange process Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Chlorination Ion exchange process Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Chlorination ANSWER DOWNLOAD EXAMIANS APP
Chemistry The anode in a dry cell consists of Zinc Graphite Copper Cadmium Zinc Graphite Copper Cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tetra ethyle lead (TEL) is An antioxidant An antiknock compound A catalyst in burning fossil fuel A reductant An antioxidant An antiknock compound A catalyst in burning fossil fuel A reductant ANSWER DOWNLOAD EXAMIANS APP
Chemistry Periodic table contains how many groups 16 18 17 19 16 18 17 19 ANSWER DOWNLOAD EXAMIANS APP
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