the sweetest amongst all naturally occurring sugars is

Options

A. Glucose
B. Fructose
C. Mannose
D. Galactose

Answer

To determine the sweetest naturally occurring sugar among the options provided (glucose, fructose, mannose, and galactose), we can analyze each sugar based on their sweetness levels.

### Step-by-Step Solution:

1. **Identify the Sugars**: The sugars we are comparing are glucose, fructose, mannose, and galactose.

2. **Understand Their Nature**:
- Glucose: A monosaccharide, commonly produced by plants during photosynthesis.
- Fructose: A monosaccharide, often found in fruits and is known for its high sweetness.
- Mannose: A monosaccharide that plays a role in human metabolism but is less sweet.
- Galactose: Another monosaccharide, which is less sweet compared to glucose and fructose.

3. **Compare Sweetness Levels**:
- Glucose: Sweetness level of approximately 0.74 to 0.8.
- Fructose: Sweetness level of approximately 1.17 to 1.75.
- Mannose: Considered the least sweet among the options.
- Galactose: Sweetness level of about 0.3.

4. **Determine the Sweetest Sugar**:
- From the sweetness levels, fructose has the highest sweetness rating (1.17 to 1.75), making it the sweetest naturally occurring sugar among the options.

5. **Conclusion**: The sweetest naturally occurring sugar is **fructose**.

### Final Answer:
The sweetest amongst all naturally occurring sugars is **fructose**.