Chemistry Food cans are coated with tin and not with zinc because Zinc is costlier than tin Zinc is less reactive than tin Zinc is more reactive than tin Zinc has a higher melting point than tin Zinc is costlier than tin Zinc is less reactive than tin Zinc is more reactive than tin Zinc has a higher melting point than tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry powder fire extinguishers contain Sand and sodium bicarbonate Sand and sodium carbonate Sand and potassium carbonate Sand Sand and sodium bicarbonate Sand and sodium carbonate Sand and potassium carbonate Sand ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of Ozone layer is mainly due to Radioactive rays Aviation fuels Volcanic eruptions Chlorofluorocarbons Radioactive rays Aviation fuels Volcanic eruptions Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry An element of atomic no. 29 belongs to D-block P-block S-block F-block D-block P-block S-block F-block ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Nitrous oxide Carbon dioxide Chlorofluorocarbons Methane Nitrous oxide Carbon dioxide Chlorofluorocarbons Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Browning of paper in old books is caused by Frequent use Lack of aeration Collection of dust Oxidation of cellulose Frequent use Lack of aeration Collection of dust Oxidation of cellulose ANSWER DOWNLOAD EXAMIANS APP
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