STATEMENT - 1 : `Cu^(+2)` is unstable in presence of `Cl^(-)` ion.
and
STATEMENT - 2 : Formation of `CuCl` is more favourable.

Options

A. Statement-1 is True, Statement-2, is True, Statement-2 is a correct explanation for Statement-1
B. Statement-1 is True, Statement-2, is True, Statement-2 is NOT a correct explanation for Statement-1
C. Statement-1 is True, Statement-2 is False
D. Statement-1 is False, Statement-2 is True

Answer

To analyze the statements provided in the question, we will evaluate each statement step by step.

### Step 1: Evaluate Statement 1
**Statement 1:** `Cu^(+2)` is unstable in the presence of `Cl^(-)` ion.

- **Analysis:**
- `Cu^(+2)` is a cation with a +2 charge.
- `Cl^(-)` is an anion with a -1 charge.
- The presence of opposite charges leads to strong electrostatic attraction between the two ions.
- According to Fajan's rule, a cation with a high positive charge and small size (like `Cu^(+2)`) has high polarizing power, which means it can distort the electron cloud of the anion (`Cl^(-)`).
- This strong attraction indicates that `Cu^(+2)` is likely to form a bond with `Cl^(-)`, leading to the formation of `CuCl`.

**Conclusion for Statement 1:** True. `Cu^(+2)` is unstable in the presence of `Cl^(-)` because it tends to form a stable compound (`CuCl`).

### Step 2: Evaluate Statement 2
**Statement 2:** Formation of `CuCl` is more favorable.

- **Analysis:**
- `CuCl` is formed when `Cu^(+1)` combines with `Cl^(-)`.
- However, `Cu` has a higher tendency to exist in the +2 oxidation state (`Cu^(+2)`) rather than the +1 state because it is more stable in that state due to its polarizing power and hydration energy.
- The formation of `CuCl` is less favorable compared to `CuCl2` because `Cu^(+2)` is more stable and forms stronger ionic bonds.
- Therefore, the formation of `CuCl` is not the most favorable pathway; instead, `CuCl2` is more favorable.

**Conclusion for Statement 2:** False. The formation of `CuCl` is not more favorable; `CuCl2` is more favorable.

### Final Conclusion
- **Statement 1:** True
- **Statement 2:** False

### Answer
The correct option is **Option 3:** Statement 1 is true, Statement 2 is false.

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