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the minimum amount of an electrolyrte re...

the minimum amount of an electrolyrte required to cause coagulation of a sol is called :

A

Coagulation value

B

Gold number

C

protective value

D

None of these

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The correct Answer is:
To solve the question regarding the minimum amount of an electrolyte required to cause coagulation of a sol, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Terms**: - Coagulation refers to the process where colloidal particles aggregate to form a precipitate. - An electrolyte is a substance that dissociates into ions in solution and can conduct electricity. 2. **Identifying the Concept**: - The minimum amount of an electrolyte needed to cause coagulation of a sol is a specific term in colloidal chemistry. 3. **Recognizing the Options**: - The options provided are: - A) Coagulation value - B) Gold number - C) Protective value - D) None of these 4. **Analyzing Each Option**: - **Coagulation value**: This term is used to describe the minimum amount of electrolyte required for coagulation. - **Gold number**: This is related to the stability of colloids and is defined as the minimum mass of colloid needed to prevent coagulation. - **Protective value**: This term is not commonly used in this context. - **None of these**: This option can be eliminated as we have a valid term. 5. **Conclusion**: - Based on the definitions and analysis, the correct answer is **A) Coagulation value**. ### Final Answer: The minimum amount of an electrolyte required to cause coagulation of a sol is called **coagulation value**. ---
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