Question

What happens when iron strip is introduced in blue coloured copper sulphate solution?

Answer 1

When iron strip is placed in cuso4 iron being more reactive displaces cu from its salt solution and color of cuso4 solution turns from blue to green and layer of cu starts depositing on iron strip

Cuso4+ fe - feso4 +cu

Answer 2

The ferrous sulphate crystals are light green in colour. The gas emitted has the characteristic odour of burning sulphur. On heating, the colour changes from light green to white. On further heating, the white substance changes to d