Which of the following carbohydrates is used in silvering of mirrors:a)Sucroseb)Cellulosec)Fructosed)GlucoseCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

Tollens test gives silver mirror test i.e reducing sugar glucose

Answer

Introduction to Silvering of Mirrors
The silvering of mirrors is a process that involves the deposition of metallic silver onto a glass surface, creating a reflective surface. One of the key components in this process is a reducing agent that facilitates the reduction of silver ions to metallic silver.
Role of Carbohydrates in Silvering
Among the carbohydrates listed, glucose plays a pivotal role in the silvering process. Here’s why:
Reducing Agent
- Glucose is a monosaccharide that can easily donate electrons.
- This property makes it an effective reducing agent.
- During the silvering process, glucose reduces silver ions (Ag+) to metallic silver (Ag).
Comparison with Other Carbohydrates
- Sucrose: A disaccharide that does not effectively act as a reducing agent under similar conditions.
- Cellulose: A polysaccharide that is not soluble in water and does not participate in reduction reactions.
- Fructose: While it is a reducing sugar, its effectiveness compared to glucose in this specific silvering process is lower.
Conclusion
In summary, glucose is the carbohydrate used in the silvering of mirrors due to its ability to reduce silver ions to metallic silver efficiently. This characteristic sets it apart from other carbohydrates listed, thus making option 'D' the correct answer.

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