Which of these fatty acids have high melting point?

Options

A. Oleic acid
B. Stearic acid
C. Linolenic acid
D. Arachidonic acid

Answer

To determine which fatty acid has the highest melting point, we can follow these steps:

### Step 1: Identify the Fatty Acids
We need to identify the fatty acids mentioned in the question. The fatty acids referenced are:
1. Oleic acid
2. Stearic acid
3. Linoleic acid
4. Linolenic acid

### Step 2: Know the Melting Points
Next, we need to know the melting points of each of these fatty acids:
- **Oleic acid**: Melting point = 16.3 °C
- **Stearic acid**: Melting point = 63.3 °C
- **Linoleic acid**: Melting point = -5 °C
- **Linolenic acid**: Melting point = -49 °C

### Step 3: Compare the Melting Points
Now we will compare the melting points of these fatty acids:
- Oleic acid: 16.3 °C
- Stearic acid: 63.3 °C
- Linoleic acid: -5 °C
- Linolenic acid: -49 °C

### Step 4: Identify the Highest Melting Point
From the comparison, we can see that:
- Stearic acid has the highest melting point at 63.3 °C.

### Conclusion
Thus, the fatty acid with the highest melting point is **Stearic acid**.

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