Question

When an iron nail dipped in blue coloured copper sulphate solution The solution turns to pale green

colour. The reaction involved in this phenomenon.

(a)Combination reaction (b)Displacement reaction (c) Decomposition reaction (d)Double displacement

reaction​

Answer 1

Explanation:

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed in the surface of iron and the colour of copper sulphate solution changes from blue to pale green. The reaction shows that iron is more reactive than copper because it displaces copper from the copper sulphate solution.

Answer 2

Answer:

From the above experiment 3 (C) we can conclude that the reaction occurred when iron nails were dipped in the copper sulphate solution for 15 minutes the colour of the solution changes to green and brownish red copper metal is deposited on the nail. Therefore this is a displacement reaction