`FeCl_3` + Potassium thiocyanate `rarr` product , the colour of this product is

Options

A. Red
B. Chocolate colour
C. Prussian blue
D. Colourless

Answer

To determine the color of the product formed when iron(III) chloride (FeCl₃) reacts with potassium thiocyanate (KSCN), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
The reactants in this reaction are iron(III) chloride (FeCl₃) and potassium thiocyanate (KSCN).

2. **Write the Chemical Reaction**:
The reaction can be represented as:
\[ \text{FeCl}_3 + \text{KSCN} \rightarrow \text{Fe(SCN)}^{2+} + \text{KCl} \]
Here, Fe(SCN)²⁺ is the complex formed.

3. **Understand the Complex Formation**:
When FeCl₃ reacts with KSCN, the thiocyanate ion (SCN⁻) coordinates with the iron ion (Fe³⁺) to form the complex ion Fe(SCN)²⁺.

4. **Determine the Color of the Product**:
The complex ion Fe(SCN)²⁺ is known to impart a characteristic red color to the solution.

5. **Conclusion**:
Therefore, the color of the product formed from the reaction of FeCl₃ and potassium thiocyanate is red.

### Final Answer:
The color of the product is red.