STATEMENT-1: `VO_(4)^(-3)` is coloured due to charge transfer .
STATEMENT-2: Colour due to charge transfer is highly intense colour
STATEMENT-3: Fe may form Fe-Fe bond

Options

A. FTF
B. FTT
C. TTF
D. TTT

Answer

To solve the question regarding the statements about the compound \( VO_4^{3-} \) and its properties, we will analyze each statement step by step.

### Step 1: Analyze Statement 1
**Statement 1:** \( VO_4^{3-} \) is colored due to charge transfer.

**Explanation:**
- Charge transfer transitions occur when electrons move between the metal and the ligands. In the case of \( VO_4^{3-} \), vanadium is in a +5 oxidation state.
- The high oxidation state of vanadium means it can accept electrons from the ligands (oxygen in this case). This process is known as Ligand to Metal Charge Transfer (LMCT).
- Since these transitions fall within the visible spectrum, they impart color to the compound.

**Conclusion:** Statement 1 is true.

### Step 2: Analyze Statement 2
**Statement 2:** Color due to charge transfer is highly intense color.

**Explanation:**
- Charge transfer transitions typically have high molar extinction coefficients, which means they absorb light very effectively.
- These transitions are allowed transitions and occur in the visible region of the electromagnetic spectrum, leading to intense colors.
- Therefore, solutions exhibiting color due to charge transfer are indeed highly intense.

**Conclusion:** Statement 2 is true.

### Step 3: Analyze Statement 3
**Statement 3:** Fe may form Fe-Fe bond.

**Explanation:**
- Iron (Fe) can form metallic bonds, which are characterized by the sharing of free electrons among a lattice of metal atoms.
- In many inorganic complexes, iron can exhibit metallic bonding, which includes Fe-Fe interactions.
- This type of bonding is crucial for the conductivity and structural integrity of metallic iron.

**Conclusion:** Statement 3 is true.

### Final Conclusion
All three statements are true. Therefore, the correct answer is that all statements are correct.

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