Question

The crystal of copper sulphate are in contact with iron filings the what will happen

Answer 1

The colour changes to green as iron is re reactive to copper it displaces copper from its salt solution and make feso4 and cu

Answer 2

Heya,

There occurs displacement reaction. Displacement reaction means a more reactive metal displaces the less reactive one.

When iron fillings are dropped in the copper sulphate solution, then the colour of soultion fades and turn into pale green. The beaker becomes slightly hot due to the liberation of heat. There is also a reddish deposition over the iron fillings are observed. This is due to the fact that the iron displaces copper from copper sulphate solution. And hence iron is more reactive than that of copper.

Hope it helps you!

Regards,

Shobana

^_^