Question

plz answer this question fast as possible.

Answer 1

This is a good example of a chemical change exhibiting a color change. The reaction can be represented as:

Copper Sulphate ( Blue) + Iron ------> Iron Sulphate (Sea Green) + Copper (Brown)

On adding an iron nail to the blue-coloured copper Sulphate solution, a sea-green iron sulphate solution is produced along with copper (Brown) deposited on the iron nail.