Question

ween Solution of Copper Sulphate and Iron phate solution is blue in colour. Copper sulphate is also When an iron nail or shaving blade is left in coppers me time, the colour of solution changes from blue to pale because of the formation of iron sulphate. Additionally, per gets deposited over the iron nail or blade. Copper sulphate Iron sulphate in colour of the copper sulphate solution due to reaction wi ( ction describing the change is given below. nate + Iron - Iron sulphate solution (green) (Fe) (Feso) (brou ove reaction, we cannot get back copper sulphate a chemical reaction. nner sulphate solution and​

Answer 1

Answer:

When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.

Reaction

CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)

In this reaction following two processes take place:

Cu²⁺ + 2e = Cu⁰ (re­duc­tion process, Cu²⁺ is the ox­i­dizing agent)

Fe⁰ – 2e = Fe²⁺ (ox­i­da­tion process, Fe⁰ is the re­duc­ing agent)

The reaction can be double displacement reaction as well as redox reaction (oxidation and reduction both takes place simultaneously).

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. The iron passes into the solution as Fe (II) forming the ferrous sulphate solution

Answer 2

Answer:

When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.

Explanation:

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