Partial hydrolysis of starch gives

Options

A. Dextrose
B. Dextrin
C. Sucrose
D. Raffinose

Answer

To solve the question "Partial hydrolysis of starch gives," we can follow these steps:

### Step 1: Understand Starch
Starch is a polysaccharide that is made up of many glucose units linked together. It is a common carbohydrate found in many foods.

**Hint:** Remember that starch is a polymer made of glucose monomers.

### Step 2: Define Hydrolysis
Hydrolysis is a chemical reaction that involves the breaking of bonds in the presence of water. In the case of starch, hydrolysis breaks the glycosidic bonds between glucose units.

**Hint:** Hydrolysis typically involves water and results in the breakdown of larger molecules into smaller ones.

### Step 3: Differentiate Between Partial and Complete Hydrolysis
- **Partial Hydrolysis:** This process breaks some of the glycosidic bonds, resulting in smaller carbohydrate molecules, but not all the way down to individual glucose units.
- **Complete Hydrolysis:** This process breaks all glycosidic bonds, resulting in free glucose molecules.

**Hint:** Think about how many bonds are being broken in partial versus complete hydrolysis.

### Step 4: Identify the Products of Partial Hydrolysis
During partial hydrolysis of starch, the primary product is **dextrin**, which is a shorter-chain carbohydrate. Other products can include smaller sugars, but the main focus here is on dextrin.

**Hint:** Dextrin is a common product of starch breakdown; it is shorter than starch but longer than glucose.

### Step 5: Analyze Other Possible Products
- **Dextrose:** This is another name for glucose, which would be produced in complete hydrolysis.
- **Sucrose:** This is a disaccharide made of glucose and fructose, not a direct product of starch hydrolysis.
- **Raffinose:** This is a trisaccharide made from galactose, glucose, and fructose, which is not a product of starch hydrolysis.

**Hint:** Consider the structure of these sugars and how they relate to starch.

### Step 6: Conclusion
Based on the analysis, the correct answer to the question "Partial hydrolysis of starch gives" is **dextrin**.

**Final Answer:** Dextrin