The calomel electrode used as a reference electrode contains which of the following substances?

In which cell,construction like a galvanic cell can be observed? Explain.

Which substance is reduced in a dry cell?

Which solution is filled in a salt bridge?

When a lead storage battery is charged,it acts as a:

Consider the figure and answer the following questions.
$(i)$ Cell $'A'$ has $E_{cell} = 2 \ V$ and cell $'B'$ has $E_{cell} = 1.1 \ V$. Which of the two cells,$'A'$ or $'B'$,will act as an electrolytic cell? Which electrode reactions will occur in this cell?
$(ii)$ If cell $'A'$ has $E_{cell} = 0.5 \ V$ and cell $'B'$ has $E_{cell} = 1.1 \ V$,then what will be the reaction at the anode and cathode?