Question

On immersing the brown coloured iron nails in blue coloured copper sulphate solution they displace — from the copper sulphate solution and their colour becomes —​

Answer 1

Answer:

Answer. on immersing the Brown coloured iron nail in blue coloured copper sulphate solution they displace COPPER from the copper sulphate solution and their colour become LIGHT GREEN of solution and colour of iron nail become REDDISH BROWN.