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 b B and c A and c C and d A and b B and c A and c ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance most commonly used as a food preservative is Sodium salt of benzoic acid Tartaric acid Sodium carbonate Acetic acid Sodium salt of benzoic acid Tartaric acid Sodium carbonate Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called : Alloy formation Galvanization Zinc plating Vulcanization Alloy formation Galvanization Zinc plating Vulcanization ANSWER DOWNLOAD EXAMIANS APP
Chemistry Lead in water can cause Arthritis Eye disease Hair falling Kidney damage Arthritis Eye disease Hair falling Kidney damage ANSWER DOWNLOAD EXAMIANS APP
Chemistry Where does the oxygen that keeps us alive come from? Water Carbon dioxide Oxides of minerals Carbonates absorbed from soil Water Carbon dioxide Oxides of minerals Carbonates absorbed from soil ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical bahaviour of an atom depends upon The number of electrons orbiting around the nucleus The number of protons in its nucleus The number of nucleons in the nucleus The number of neutrons in the nucleus The number of electrons orbiting around the nucleus The number of protons in its nucleus The number of nucleons in the nucleus The number of neutrons in the nucleus ANSWER DOWNLOAD EXAMIANS APP
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