Which of the following statements are correct?

Options

A. Hydrolysis of sucrose with dilute acid yields an equimolar mixture
of D-Glucose and D-Fructose.
B. Acidic hydrolysis of sucrose is accompained by a change in optical reaction.
C. In sucrose, the glycosidic linkage is between C-1 glucose andC-2 of fructose.
D. Aqueous solution of sucrose exhibits mutarotation.

Answer

To determine which statements regarding sucrose and its properties are correct, we will analyze each statement step by step.

### Step 1: Analyze the first statement
**Statement 1:** "The hydrolysis of sucrose with dilute acid yields an equimolar mixture of D-glucose and D-fructose."

- **Explanation:** Sucrose (C12H22O11) undergoes hydrolysis in the presence of dilute acid (or an enzyme like invertase) to yield D-glucose and D-fructose. The reaction can be represented as:
\[ C_{12}H_{22}O_{11} + H_2O \rightarrow C_6H_{12}O_6 + C_6H_{12}O_6 \]
- **Conclusion:** This statement is correct as the hydrolysis of sucrose produces equal amounts of D-glucose and D-fructose.

### Step 2: Analyze the second statement
**Statement 2:** "Acidic hydrolysis is accompanied by a change in optical rotation."

- **Explanation:** Sucrose is dextrorotatory with a specific rotation of +66.5 degrees. Upon hydrolysis, the resulting mixture of D-glucose and D-fructose is levorotatory, resulting in a change in optical rotation. The net rotation after hydrolysis is around -19.85 degrees.
- **Conclusion:** This statement is also correct as there is indeed a change in optical rotation during the hydrolysis process.

### Step 3: Analyze the third statement
**Statement 3:** "An aqueous solution of sucrose exhibits mutarotation."

- **Explanation:** Mutarotation refers to the change in optical rotation that occurs when an anomeric carbon in a sugar changes from one form to another (e.g., from α to β). Sucrose, being a non-reducing sugar, does not exhibit mutarotation. It is stable in its form and does not undergo this process.
- **Conclusion:** This statement is incorrect.

### Step 4: Analyze the fourth statement
**Statement 4:** "In sucrose, the glycosidic linkage is between C1 of glucose and C2 of fructose."

- **Explanation:** The glycosidic bond in sucrose indeed forms between the anomeric carbon (C1) of D-glucose and the C2 of D-fructose. This linkage is characteristic of sucrose.
- **Conclusion:** This statement is correct.

### Final Summary of Correct Statements
- **Correct Statements:** 1, 2, and 4.
- **Incorrect Statement:** 3.