Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Carbon dioxide Chlorofluorocarbons Sulphur dioxide Nitrous oxide Carbon dioxide Chlorofluorocarbons Sulphur dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The strongest oxidizing agent among the following is: Oxygen Fluorine Iodine Chlorine Oxygen Fluorine Iodine Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Calcination Smelting Refining Roasting Calcination Smelting Refining Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemistry The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of a condensation reaction an addition reaction an oxidation reaction an elimination reaction a condensation reaction an addition reaction an oxidation reaction an elimination reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Impure camphor is purified by Steam distillation Fractional distillation Sublimation Fractional crystallisation Steam distillation Fractional distillation Sublimation Fractional crystallisation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following alloy is used in making magnet ? Stainless steel Magnalium Duralumin Alnico Stainless steel Magnalium Duralumin Alnico ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS