Question

Pieces of copper, silver and gold are dropped into a solution of iron sulphate. The piece that will get a coating of copper is:

a)iron
b)silver
c)gold
d)None of them

Answer 1

Answer:

Correct option is

C

gold

According to the reactivity series, copper can replace both gold and silver.

Since gold is the least reactive metal, thus gold will get a coating of copper.

Hence, the correct option is C

Answer 2

Answer:

both silver and gold

Explanation:

copper is more reactive than silver and gold