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An iron nail is dipped in the solution o...

An iron nail is dipped in the solution of copper sulphate for about 30 minture, state the change in colour observed. Give the reason for the change.

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**Step-by-Step Solution:** 1. **Initial Observation**: When an iron nail is dipped into a copper sulfate solution, the initial color of the solution is blue due to the presence of copper ions (Cu²⁺). 2. **Chemical Reaction**: The iron (Fe) from the nail reacts with the copper sulfate (CuSO₄) solution. The chemical reaction can be represented as: \[ \text{Fe (s)} + \text{CuSO}_4 (aq) \rightarrow \text{FeSO}_4 (aq) + \text{Cu (s)} \] ...
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