10th Class Chemistry Chapter 4 Test04. Electrochemistry

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which of the following does not involve an electrolytic process?
   1. Refining of copper
   2. Manufacture of Sodium from NaCl
   3. Electroplating of steel
   4. Reduction of metal oxide by a reducing agent.
2. The cathode always produces which gas in both dilute and concentrated halide solutions?
   1. Oxygen
   2. Hydrogen
   3. Chlorine
   4. None
3. Which of the following converts chemical energy into electrical energy?
   1. Electrolytic cell
   2. Galvanic cell
   3. Both a & b
   4. None of these
4. Which of the following is produced at the anode in concentrated halide solution?
   1. O₂
   2. H₂
   3. Cl₂
   4. Na
5. The oxidation reaction in Daniell Cell occurs at:
   1. Cathode
   2. Anode
   3. Salt bridge
   4. Both electrodes
6. The anode of a Daniell Cell consists of:
   1. Copper rod in CuSO₄ solution
   2. Zinc rod in ZnSO₄ solution
   3. Silver rod in AgNO₃ solution
   4. Nickel rod in NiSO₄ solution
7. If the voltage data shows metal A has a higher standard reduction potential than metal B, it can be concluded that:
   1. Metal A is more reactive than Metal B.
   2. Metal B is more reactive than Metal A.
   3. Metal A and Metal B have the same reactivity.
   4. Metal A is less likely to gain electrons than metal B.
8. Electrochemistry deals with:
   1. Heat and work
   2. Electrochemical reactions
   3. Light and optics
   4. Atomic structure
9. Chromium plating is commonly used in making:
   1. Food cans
   2. Automobile parts
   3. Water pipes
   4. Electrical wires
10. A battery is a:
    1. Single galvanic cell
    2. Electrolytic cell
    3. Group of galvanic cells joined in series
    4. Electroplating cell