The correct statement about charging of the lead storage battery is -

1. PbSO₄ anode is reduced to Pb

2. PbSO₄ cathode is reduced to Pb

3. PbSO₄ cathode is oxidised to Pb

4. PbSO₄ anode is oxidised to PbO₂

Match the items of Column I and Column II.

Codes

           A         B          C           D

1.        2          3           4           1

2.        1          2           3           5

3.        5          4           3           2

4.        4          3           1           2

Match the items of Column I and Column II.

Codes

          A         B          C            D

1.       2          3           4           1

2.       4          3           1           2

3.       1          4           3           2

4.       4          1           3           2

Assertion: Mercury cell does not give steady potential.

Reason: In the cell reaction, ions are not involved in the solution.

1.  Both assertion and reason are true and the reason is the correct explanation of assertion.

2.  Both assertion and reason are true and reason is not the correct explanation of assertion.

3.  Assertion is true but the reason is false.

4. Assertion is false but the reason is true.