Chemistry Aquaregia is a mixture of the following in the ratio 1 : 3 by volume Conc. HNO3 and conc. HCl Conc. HCl and conc. HNO3 Conc. HNO3 and conc. H2SO4 Dil. HCl and dil. HNO3 Conc. HNO3 and conc. HCl Conc. HCl and conc. HNO3 Conc. HNO3 and conc. H2SO4 Dil. HCl and dil. HNO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone consists of Oxygen only Hydrogen and Carbon Oxygen and Nitrogen Oxygen and Carbon Oxygen only Hydrogen and Carbon Oxygen and Nitrogen Oxygen and Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuCO3 Cu(OH)2 CuO CuSO4 Cu(NO3)2 CuCO3 Cu(OH)2 CuO CuSO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tetra ethyle lead (TEL) is An antioxidant An antiknock compound A reductant A catalyst in burning fossil fuel An antioxidant An antiknock compound A reductant A catalyst in burning fossil fuel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Impure camphor is purified by Sublimation Steam distillation Fractional distillation Fractional crystallisation Sublimation Steam distillation Fractional distillation Fractional crystallisation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the atmosphere is mainly caused by Hydrogen sulphide Sulphur dioxide Chlorofluorocarbon Nitrogen dioxide Hydrogen sulphide Sulphur dioxide Chlorofluorocarbon Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
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