Which of the following is not a correct match ?

Options

A. Butter -O/W type emulsion
B. Vanishing cream -O/W type emulsion
C. Milk -O/W type emulsion
D. Cream-W/O type emulsion

Explanation

To solve the question of which of the following is not a correct match regarding emulsions, we will analyze each option provided and determine their classifications as emulsions.

### Step-by-Step Solution:

1. **Understand Emulsions:**
- Emulsions are colloidal solutions formed by mixing two immiscible liquids, where one liquid acts as the dispersed phase and the other as the dispersion medium.

2. **Identify Types of Emulsions:**
- There are two main types of emulsions:
- **Oil in Water (O/W)**: Oil droplets are dispersed in water. Example: Milk.
- **Water in Oil (W/O)**: Water droplets are dispersed in oil. Example: Butter.

3. **Analyze Each Option:**
- **Option A: Butter - Oil in Water**
- Butter is actually a Water in Oil emulsion, not Oil in Water. Therefore, this is an incorrect match.

- **Option B: Vanishing Cream - Oil in Water**
- Vanishing cream is indeed an Oil in Water emulsion. This is a correct match.

- **Option C: Milk - Oil in Water**
- Milk is also an Oil in Water emulsion. This is a correct match.

- **Option D: Cream - Water in Oil**
- Cream is a Water in Oil emulsion. This is a correct match.

4. **Conclusion:**
- The only incorrect match is **Option A: Butter - Oil in Water**. Therefore, the answer to the question is that this is not a correct match.

### Final Answer:
**Option A: Butter - Oil in Water is not a correct match.**

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