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Positive sol is :...

Positive sol is :

A

Gold

B

Gelatin

C

`As_(2)S_(3)`

D

`Al_(2)(SO_(4))_(3)`

Text Solution

AI Generated Solution

The correct Answer is:
To determine which among the given options is a positive sol, we need to analyze the charge of each sol mentioned. ### Step-by-Step Solution: 1. **Identify the Sols**: The question provides four different sols: gold, gelatin, arsenic sulfide, and aluminum sulfate. 2. **Analyze Gold**: - Gold sol is known to be a negatively charged sol. This is due to the presence of gold particles that acquire a negative charge when dispersed in a medium. 3. **Analyze Gelatin**: - Gelatin is a lyophilic sol, which means it has an affinity for the solvent. However, it also carries a negative charge when dispersed in water. 4. **Analyze Arsenic Sulfide**: - Arsenic sulfide is another example of a sol that is negatively charged. It forms a colloidal suspension where the particles also carry a negative charge. 5. **Analyze Aluminum Sulfate**: - Aluminum sulfate, on the other hand, is known to form a positive sol. When aluminum sulfate is dispersed in a medium, it dissociates and the aluminum ions carry a positive charge. 6. **Conclusion**: - After analyzing all the options, we find that aluminum sulfate is the only sol that is positively charged. Therefore, the correct answer is aluminum sulfate. ### Final Answer: The positive sol among the options is **aluminum sulfate**. ---
To determine which among the given options is a positive sol, we need to analyze the charge of each sol mentioned. ### Step-by-Step Solution: 1. **Identify the Sols**: The question provides four different sols: gold, gelatin, arsenic sulfide, and aluminum sulfate. 2. **Analyze Gold**: - Gold sol is known to be a negatively charged sol. This is due to the presence of gold particles that acquire a negative charge when dispersed in a medium. ...
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