equation question

(i)
The final colour of the solution is colourless.

(ii)
Cl2(aq) + 2I-(aq) → 2Cl-(aq) + I2(aq)
I2(aq) + SO32-(aq) + H2O(l) → 2I-(aq) + SO42-(aq) + 2H+(aq)


(i)
The final colour of the solution is colourless.

(ii)
Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)
Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s)


The acidified potassium permanganate changes from purple to colourless.
=