Question

6(d). For which of the following
combinations we can observe a
change in colour ? *
O Copper sulphate + zinc granules
O Zinc sulphate + copper turnings
O
Iron sulphate + Copper turnings
O
Zinc sulphate + Iron nails​

Answer 1

Answer:

answer is 4

Explanation:

zinc sulphate reacts with iron nails to produce a colour because zinc undergoes displacement reaction with iron .

Thank you