Chemical effects of electric current medium

Chemical Effects of Electric Current Quiz

1. Which gas is usually liberated at the cathode during the electrolysis of water?

a) Oxygen b) Hydrogen c) Carbon dioxide d) Nitrogen

2. What is the process in which oxygen is added to a substance?

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

3. What is the substance that is used as an electrolyte in a simple chemical cell?

a) Water b) Salt c) Battery acid d) Lemon juice

4. What is the process of breaking down a compound into its constituent elements using electric current called?

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

5. What is the name of the process in which a metal surface is coated with a thin layer of zinc to prevent corrosion?

a) Anodizing b) Galvanization c) Alloying d) Magnetization

6. What is the process of depositing a layer of any desired metal on another material by means of electricity?

a) Electroplating b) Electromagnetism c) Electrocution d) Electrostatics

7. Which metal is commonly used for electroplating to prevent iron from rusting?

a) Copper b) Gold c) Silver d) Chromium

8. Which gas is produced at the anode during the electrolysis of brine solution?

a) Oxygen b) Chlorine c) Hydrogen d) Carbon dioxide

9. In the process of electrolysis, what is the name of the positively charged electrode?

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

10. Which of the following substances can conduct electricity?

a) Wood b) Plastic c) Copper d) Rubber