Which of the following statements is not true about sucrose?

Options

A. It is also named as invert sugar
B. On hydrolysis, it produces glucose and fructose
C. It is a non reducing sugar
D. The glcosidic linkage is present between `C_(1) ` of `alpha`-glucose and `C_(1)` of `beta`-frutose

Explanation

To determine which statement is not true about sucrose, we need to analyze each option provided in the question. Here’s a step-by-step solution:

### Step 1: Understand the Structure of Sucrose
Sucrose is a disaccharide composed of two monosaccharides: glucose and fructose. It is formed by a glycosidic bond between the anomeric carbon of glucose (C1) and the C2 of fructose.

### Step 2: Identify Key Properties of Sucrose
1. **Non-reducing Sugar**: Sucrose is classified as a non-reducing sugar because it does not have a free aldehyde or ketone group that can act as a reducing agent.
2. **Does Not Undergo Mutarotation**: Sucrose does not undergo mutarotation because it does not have a free anomeric carbon.
3. **Hydrolysis Products**: Upon hydrolysis, sucrose breaks down into its constituent monosaccharides: α-D-glucose and β-D-fructose.
4. **Glycosidic Linkage**: The glycosidic bond in sucrose is formed between the C1 of α-D-glucose and the C2 of β-D-fructose.

### Step 3: Analyze Each Statement
Now, we will evaluate the statements one by one:

- **Statement A**: "Sucrose is also known as invert sugar."
- **True**: Invert sugar refers to a mixture of glucose and fructose obtained by hydrolyzing sucrose.

- **Statement B**: "On hydrolysis, sucrose gives fructose and glucose."
- **True**: Hydrolysis of sucrose yields α-D-glucose and β-D-fructose.

- **Statement C**: "Sucrose is a non-reducing sugar."
- **True**: Sucrose does not reduce Fehling's solution or Tollen's reagent, confirming it is a non-reducing sugar.

- **Statement D**: "The glycosidic linkage is present between C1 of α-D-glucose and C1 of β-D-fructose."
- **Not True**: The glycosidic linkage in sucrose is actually between C1 of α-D-glucose and C2 of β-D-fructose, not C1 of both.

### Conclusion
The statement that is not true about sucrose is **Statement D**.

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