Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuO CuSO4 CuCO3 Cu(OH)2 Cu(NO3)2 CuO CuSO4 CuCO3 Cu(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'laughing gas' is Nitric oxide Nitrogen dioxide Nitrogen pentoxide Nitrous oxide Nitric oxide Nitrogen dioxide Nitrogen pentoxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Copper Chromium Lead Cadmium Copper Chromium Lead Cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silica gel is a Drying agent Moisturizer Delicious food Flavouring agent Drying agent Moisturizer Delicious food Flavouring agent ANSWER DOWNLOAD EXAMIANS APP
Chemistry The source of energy that causes the least global warming is Coal Natural Gas Petroleum Geothermal energy Coal Natural Gas Petroleum Geothermal energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is the heaviest in periodic table among the following ? W Pt Pb Os W Pt Pb Os ANSWER DOWNLOAD EXAMIANS APP
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