Chemical effect of electric current hard

Chemical Effects of Electric Current Quiz

1. Which of the following is an example of a non-metal that conducts electricity?

a) Copper b) Aluminium c) Carbon d) Silver

2. What is the process in which a more reactive metal displaces a less reactive metal from its salt solution?

a) Electrolysis b) Oxidation c) Reduction d) Displacement

3. Which gas is evolved at the anode during the electrolysis of brine solution?

a) Oxygen b) Chlorine c) Hydrogen d) Nitrogen

4. In which process is the transfer of ions through a solution by the passage of an electric current?

a) Electroplating b) Electrolysis c) Displacement d) Reduction

5. What is the product of the electrolysis of dilute sulfuric acid using platinum electrodes?

a) Oxygen and hydrogen b) Hydrogen and chlorine c) Oxygen and chlorine d) Oxygen and nitrogen

6. What is the substance that conducts electricity in a solution?

a) Electrolyte b) Cathode c) Anode d) Conductor

7. What is the process of depositing a layer of metal on an object to improve its appearance and protect it from corrosion?

a) Reduction b) Galvanization c) Oxidation d) Alloying

8. What is the name of the compound that forms on the surface of iron when it reacts with moist air?

a) Iron oxide b) Iron nitrate c) Iron sulfide d) Iron carbonate

9. What is the process of preventing the corrosion of iron by coating it with a layer of zinc called?

a) Oxidation b) Galvanization c) Electrolysis d) Reduction

10. Which of the following metals is used to make sacrificial anodes for protecting ships and underground pipelines from corrosion?

a) Copper b) Silver c) Magnesium d) Aluminium