Question

a reddish brown colour coated over Iron nails put in the solution of zinc sulphate , aluminum sulphate, iron sulphate, copper sulphate​

Answer 1

☆When iron nails put in the solutions of zinc sulphate, aluminium sulphate,iron sulphate and When iron nail is dipped in Copper sulphate, it takes reaction between them and Copper sulphate changes its color from blue to light green. ... This could replacecopper from CuSO4, and blue color and FeSO4 is in light green color. It will change its colors due to copper iron nails functions.

Answer 2

Answer:

Hlo mate

When an iron nail is kept in copper sulphate solution, a reddish brown coating is seen on theiron nail after sometime. Also, the colour of thecopper sulphate solution changes from blue to green. This is observed because iron displacescopper from copper sulphate solution as iron ismore reactive than copper.