Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 CuO CuSO4 Cu(NO3)2 CuCO3 Cu(OH)2 CuO CuSO4 Cu(NO3)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry CNG used in automobiles to check pollution, mainly consists of CO2 CH4 N2 H2 CO2 CH4 N2 H2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is the heaviest in periodic table among the following ? Os W Pt Pb Os W Pt Pb ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal extracted from Bauxite is : Copper Silver Manganese Aluminum Copper Silver Manganese Aluminum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of Ozone layer is mainly due to Chlorofluorocarbons Radioactive rays Aviation fuels Volcanic eruptions Chlorofluorocarbons Radioactive rays Aviation fuels Volcanic eruptions ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tear gas is : Bleaching powder Nitrous oxide Carbonyl chloride Chloroprene Bleaching powder Nitrous oxide Carbonyl chloride Chloroprene ANSWER DOWNLOAD EXAMIANS APP
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