Question

When iron nail is dropped in copper sulphate solution what will happen and why?

Answer 1

Answer:

copper sulphate solution reacts with iron nails and copper sulphate particals gathers on iron nails and a brownish layer formed on iron nails

Answer 2

Answer:

Remember the reactivity series of metal s, which says that Iron is more reactive than copper, therefore it can displace copper from its salts (here,copper sulphate).

The displacement reaction taking place can e written as :

Fe + CuSO4(aq) == FeSO4 + Cu

Iron + Copper Sulphate(aq) == Iron sulphate + copper

Now, enough basics, directly to question…

A fter 30 minutes:

1) The initial blue colour of copper sulphate solution is changed to light green colour of iron sulphate.

2) The initial silver colour of iron nail is changed to reddish-brown colour due to coating of copper metal on the nail.

THANKS.

Explanation: