Question

.....
reaction occurs when iron nail is placed in aqueous solution of
copper sulphate.
(a) Displacement (b) Oxidation
(c) Decomposition (d) Combination​

Answer 1

Answer:

displacement reaction

Explanation:

becoz Fe is more reactive than hydrogen .so it displaced h from h2o

Answer 2

Answer:

I think displacement reaction

Explanation:

as iron is more reactive then copper so it will displaces it from the solution of copper sulphate

Fe + CuSo4 ---- FeSo4 + Cu