Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Chlorination 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 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the purest commercial form of iron ? Stainless steel Wrought iron Steel Pig iron Stainless steel Wrought iron Steel Pig iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of a hydrogen atom consists of 1 electron only 1 proton only 1 proton + 2 neutron 1 neutron only 1 electron only 1 proton only 1 proton + 2 neutron 1 neutron only ANSWER DOWNLOAD EXAMIANS APP
Chemistry Food cans are coated with tin and not with zinc because Zinc is less reactive than tin Zinc has a higher melting point than tin Zinc is more reactive than tin Zinc is costlier than tin Zinc is less reactive than tin Zinc has a higher melting point than tin Zinc is more reactive than tin Zinc is costlier than tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a monoatomic gas? Nitrogen Oxygen Neon Fluorine Nitrogen Oxygen Neon Fluorine ANSWER DOWNLOAD EXAMIANS APP
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