Glucose reacts wih acetic anhydride to form:

Options

A. Monoacetate
B. Tetra-acetate
C. Penta-acetate
D. Hexa-acetate

Answer

To determine the product of the reaction between glucose and acetic anhydride, we can follow these steps:

### Step 1: Understand the Reactants
- **Glucose** is a simple sugar with the molecular formula C6H12O6. It contains five hydroxyl (–OH) groups.
- **Acetic Anhydride** has the formula (CH3CO)2O and is a reagent used to acetylate alcohols and phenols.

### Step 2: Identify the Functional Groups
- Glucose has five hydroxyl groups (-OH) that can react with acetic anhydride.
- Each hydroxyl group can be converted into an acetate group (-OCOCH3) through acetylation.

### Step 3: Determine the Possible Products
- Since glucose has five hydroxyl groups, it can theoretically form five acetate groups when fully reacted with acetic anhydride.
- The possible products based on the number of hydroxyl groups are:
- Monacetate (1 acetate group)
- Diacetate (2 acetate groups)
- Triacetate (3 acetate groups)
- Tetraacetate (4 acetate groups)
- Pentacetate (5 acetate groups)

### Step 4: Perform the Reaction
- When glucose reacts with acetic anhydride, all five hydroxyl groups can be acetylated. Thus, the reaction will yield glucose pentacetate.

### Step 5: Write the Final Product
- The final product of the reaction between glucose and acetic anhydride is **glucose pentacetate**.

### Conclusion
- Therefore, the correct answer is **pentacetate**.