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which of the following in not a gel ?...

which of the following in not a gel ?

A

Gelatin

B

Starch

C

Acetic acid

D

Agar-agar

Text Solution

AI Generated Solution

The correct Answer is:
To determine which of the following options is not a gel, we need to understand what a gel is and analyze each option accordingly. ### Step-by-Step Solution: 1. **Definition of Gel**: - A gel is a colloidal system where a liquid is dispersed in a solid. It has a semi-solid structure and can exhibit properties of both solids and liquids. 2. **Types of Gels**: - **Elastic Gels**: These gels possess elasticity. Examples include gelatin, agar-agar, and starch. - **Non-Elastic Gels**: These gels are rigid and do not exhibit elasticity. An example is silica gel. 3. **Analyzing the Options**: - **Option 1: Gelatin**: This is an elastic gel. So, it is a gel. - **Option 2: Starch**: This is also an elastic gel. So, it is a gel. - **Option 3: Acetic Acid**: This is a liquid and not a gel. Therefore, this is the option that is not a gel. - **Option 4: Agar-Agar**: This is another example of an elastic gel. So, it is a gel. 4. **Conclusion**: - The only option that is not a gel is **Acetic Acid**. ### Final Answer: **Acetic Acid** is not a gel.
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