One of the most common cells that's been used in our daily life is Duracell, also known as an alkaline cell. The image below shows the internal structure of a Duracell.

This cell uses a zinc half-cell and another half-cell containing a carbon (graphite) electrode in contact of moist manganese oxide.
Given that the electrode potential for `Zn^(2+)//Zn = -0.76 V` and `Mn^(4+)//Mn^(3+) (aq.) = +0.74V`.
(i) Write down the half-cell reactions for this cell at each electrode.
(ii) Calculate the overall cell potential.
(iii) Which of the two will be the positive electrode and why?
(iv) Draw the cell diagram, representing the direction in which reaction occurs in this cell.