A: Copper rod turns colourless solution of zinc sulphate to blue.
R: Zinc reduce `Cu^(2+) " ions to " Cu^(+)`

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements then mark (4)

Answer

To solve the question, we need to analyze the assertion and reason provided in the statement:

### Step-by-Step Solution:

1. **Understanding the Assertion:**
- The assertion states that a copper rod turns a colorless solution of zinc sulfate to blue.
- Zinc sulfate (ZnSO₄) is colorless, while copper sulfate (CuSO₄) is blue.

2. **Analyzing the Reaction:**
- When a copper rod is placed in a zinc sulfate solution, we need to consider the reactivity of the metals involved.
- Zinc (Zn) is more reactive than copper (Cu). According to the reactivity series, a more reactive metal can displace a less reactive metal from its compound.

3. **Identifying the Reaction:**
- The reaction that occurs is:
\[ \text{Zn (s)} + \text{CuSO}_4 \text{(aq)} \rightarrow \text{Cu (s)} + \text{ZnSO}_4 \text{(aq)} \]
- Here, zinc displaces copper from copper sulfate, forming zinc sulfate and solid copper.

4. **Color Change Explanation:**
- The initial solution of zinc sulfate is colorless, and the copper sulfate solution is blue.
- When zinc displaces copper, the blue color of copper sulfate disappears, and the solution becomes colorless due to the formation of zinc sulfate.

5. **Understanding the Reason:**
- The reason states that zinc reduces \( \text{Cu}^{2+} \) ions to \( \text{Cu}^{+} \).
- This is incorrect because zinc reduces \( \text{Cu}^{2+} \) ions to \( \text{Cu} \) (solid copper), not \( \text{Cu}^{+} \).

6. **Conclusion:**
- Since the assertion is incorrect (the solution does not turn blue; it turns colorless) and the reason is also incorrect (zinc does not reduce \( \text{Cu}^{2+} \) to \( \text{Cu}^{+} \)), both statements are false.

### Final Answer:
Both the assertion and the reason are false.