Chemistry Iron and manganese present as pollutants in water cannot be removed by________ 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 Chlorination ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following will replace hydrogen from acids to form salts ? Ag S P Na Ag S P Na ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical bahaviour of an atom depends upon The number of protons in its nucleus The number of nucleons in the nucleus The number of electrons orbiting around the nucleus The number of neutrons in the nucleus The number of protons in its nucleus The number of nucleons in the nucleus The number of electrons orbiting around the nucleus The number of neutrons in the nucleus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which component referred to as 'Milk sugar'? Sucrose Lactose Maltose Galactose Sucrose Lactose Maltose Galactose ANSWER DOWNLOAD EXAMIANS APP
Chemistry Activated Charcoal is used to remove colouring matter from pure substances by Bleaching Reduction Adsorption Oxidation Bleaching Reduction Adsorption Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Coloured impurities Nitrogen dioxide Nitrous oxide Oxygen Coloured impurities Nitrogen dioxide Nitrous oxide Oxygen ANSWER DOWNLOAD EXAMIANS APP
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