Colour of ppt formed when `HgCl_(2)` reacts with KI is

Options

A. Orange
B. Blue
C. Green
D. White

Answer

To determine the color of the precipitate formed when mercuric chloride (HgCl₂) reacts with potassium iodide (KI), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
The reactants in this reaction are mercuric chloride (HgCl₂) and potassium iodide (KI).

2. **Write the Chemical Reaction**:
When HgCl₂ reacts with KI, the reaction can be represented as:
\[ \text{HgCl}_2 + 2\text{KI} \rightarrow \text{HgI}_2 + 2\text{KCl} \]

3. **Identify the Products**:
The products of this reaction are mercuric iodide (HgI₂) and potassium chloride (KCl).

4. **Determine the Color of the Precipitate**:
Mercuric iodide (HgI₂) is known to form a precipitate, and it is characterized by its orange color.

5. **Conclude the Answer**:
Therefore, the color of the precipitate formed when HgCl₂ reacts with KI is orange.

### Final Answer:
The color of the precipitate formed when HgCl₂ reacts with KI is **orange**.

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