Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 C and d A and c A and b B and c C and d A and c A and b B and c ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water gas is the combination of CO2 and CO CO2and H2 CO and H2 CO and H2O CO2 and CO CO2and H2 CO and H2 CO and H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following organic compound is used to remove stains of iron compounds? Oxalic acid Cinnamic acid Phthalic acid Benzoic acid Oxalic acid Cinnamic acid Phthalic acid Benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Zone refining is used for the purification of Ag Ge Cu Au Ag Ge Cu Au ANSWER DOWNLOAD EXAMIANS APP
Chemistry The highest volume of gases in lower atmosphere is comprised of Nitrogen Carbon dioxide Oxygen Hydrogen Nitrogen Carbon dioxide Oxygen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is adding sodium carbonate adding caustic soda distillation boiling adding sodium carbonate adding caustic soda distillation boiling ANSWER DOWNLOAD EXAMIANS APP
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