Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 Cu(NO3)2 CuO CuSO4 CuCO3 Cu(OH)2 Cu(NO3)2 CuO CuSO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the stratosphere is mainly caused by SO2 Chlorogluorocarbons NO2 NO SO2 Chlorogluorocarbons NO2 NO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Adding Cl2 to benzene in the presence of AlCl3 is an example of : Elimination reaction None of the options Substitution reaction Addition reaction Elimination reaction None of the options Substitution reaction Addition reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals can displace copper from copper sulphate solution ? Mercury Iron Platinum Gold Mercury Iron Platinum Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of Gammaxane is Benzene hexachloride Chloro benzene Toluene Aniline Benzene hexachloride Chloro benzene Toluene Aniline ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the most dense liquid from the below Water Gasolin Choloform None of these Water Gasolin Choloform None of these ANSWER DOWNLOAD EXAMIANS APP
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