Chemistry Zone refining is used for the purification of Ag Au Ge Cu Ag Au Ge Cu ANSWER DOWNLOAD EXAMIANS APP
Chemistry Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of Isothermal system Isobaric system Open system Closed system Isothermal system Isobaric system Open system Closed system ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a derivative of barbituric acid Nembutal Amytal Veronal Equanil Nembutal Amytal Veronal Equanil ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Non-combustible More abundant than hydrogen More stable Lighter than hydrogen Non-combustible More abundant than hydrogen More stable Lighter than hydrogen 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 Which of the following is used as a lubricant in heavy machines? Sulphur Graphite Phosphorus Bauxite Sulphur Graphite Phosphorus Bauxite ANSWER DOWNLOAD EXAMIANS APP
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