Cellulose is soluble in

Options

A. Water
B. Organic solvents
C. Ammonical cupric hydroxide solution
D. All of these

Answer

**Step-by-Step Solution:**

1. **Understanding Cellulose**: Cellulose is a polysaccharide composed of glucose units linked by β(1→4) glycosidic bonds. It is a major component of plant cell walls and is known for its structural role.

2. **Solubility in Water**: Cellulose is generally insoluble in water. This is due to its extensive hydrogen bonding between the cellulose chains, which makes it difficult for water molecules to penetrate and dissolve the cellulose.

3. **Solubility in Organic Solvents**: Cellulose is also insoluble in most organic solvents. Organic solvents typically do not interact effectively with the cellulose structure, which is primarily hydrophilic due to the presence of hydroxyl (-OH) groups.

4. **Special Solvent - Ammonical Cupric Hydroxide**: However, cellulose can dissolve in specific solvents, one of which is ammonical cupric hydroxide solution (also known as Schwitzer's reagent). This solution can break down the hydrogen bonds in cellulose, allowing it to dissolve.

5. **Conclusion**: Based on the analysis, cellulose is not soluble in water or typical organic solvents, but it is soluble in ammonical cupric hydroxide solution. Therefore, the correct answer to the question is that cellulose is soluble in ammonical cupric hydroxide solution.

**Final Answer**: Cellulose is soluble in ammonical cupric hydroxide solution.

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