Chemistry Zone refining is used for the purification of Cu Ag Au Ge Cu Ag Au Ge ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Phosphine Chlorine Sulphur dioxide Freon Phosphine Chlorine Sulphur dioxide Freon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is colourless ? Oxygen Chlorine Sulphur Phosphorus Oxygen Chlorine Sulphur Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry In deep-sea diving, divers use a mixture of gases consisting of oxygen and Hydrogen Nitrogen Argon Helium Hydrogen Nitrogen Argon Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be 1 : 1 : 1 2 : 16 : 2 2 : 16 : 1 1 : 16 : 2 1 : 1 : 1 2 : 16 : 2 2 : 16 : 1 1 : 16 : 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Drinking soda is Oxidant Acidic Neutral Alkaline Oxidant Acidic Neutral Alkaline ANSWER DOWNLOAD EXAMIANS APP
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