Question

(2)
(III) What will you observe when
(a) Some zinc pieces are put into copper
sulphate solution.
(1)
(b) Some silver pieces are put into green
coloured ferrous sulphate solution (1)​

Answer 1

Explanation:

when zinc is put in copper sulphate solution, zinc displaces copper from the copper sulphate solution because zinc is more reactive than copper. Hence the blue solution becomes colourless. (ii). no reaction will occur because silver is less reactive than iron.