Question

What would you observe when you put some zinc pieces into blue copper sulphate solution? [1 MARK]

Answer 1

Explanation: 1 Mark

Blue colour of copper sulphate solution will slowly disappear. The disappearance of the blue color and the absence of blue precipitate during the test indicates that the copper ions have been consumed. These ions have formed metallic copper on the remaining zinc powder.
Zinc + copper sulphate $\to$ copper + zinc sulphate