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coagultion is the process by which the d...

coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separtate from the continuous phase. The minimum concetration of an eletrolyte in milli-moles per litre of the electrolyte solution which required to cause the caogultion of colloidal sol is called coagution value .
therefroe higher is the coagulatings power of effective ion, smaller will be the coagultion value of the electrolyte.
the coagulation of colloidal particles fo the sol can be caused by :

A

heating

B

adding electrolyte

C

adding oppositely charged sol

D

all of these

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To solve the question regarding the factors that cause the coagulation of colloidal particles, we can break it down into clear steps: ### Step-by-Step Solution: 1. **Understanding Coagulation**: - Coagulation is the process where dispersed colloidal particles aggregate to form larger particles that can settle out of the solution. This process is essential in separating colloids from their continuous phase. 2. **Factors Affecting Coagulation**: - Coagulation can be influenced by several factors, including: - **Heating**: Increasing the temperature can lead to a decrease in the charge on the colloidal particles. As the temperature rises, the kinetic energy of the particles increases, which can disrupt the stability of the colloid and lead to coagulation. - **Addition of Electrolytes**: When electrolytes are added to a colloidal solution, they dissociate into positive and negative ions. These ions can neutralize the charges on the colloidal particles, leading to aggregation and settling. - **Oppositely Charged Colloids**: Introducing colloids with charges opposite to those of the dispersed particles can also lead to coagulation through neutralization of charges. 3. **Conclusion**: - Therefore, coagulation of colloidal particles can be caused by heating, the addition of electrolytes, and the presence of oppositely charged colloids. All these factors contribute to the aggregation of colloidal particles. ### Final Answer: The coagulation of colloidal particles can be caused by: - Heating - Addition of electrolytes - Presence of oppositely charged colloids
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coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separtate from the continuous phase. The minimum concetration of an eletrolyte in milli-moles per litre of the electrolyte solution which required to cause the caogultion of colloidal sol is called coagution value . therefroe higher is the coagulatings power of effective ion, smaller will be the coagultion value of the electrolyte. coagultion value propto = 1/("coagulating power") the coagulation values of differnt electrolytes are different . this behavious can be easily uderstood by Harby - schulze rule which states. the greater is the valency of the effective ion grreater is its coagulating power," which one had the highest coagulating powe?

coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separtate from the continuous phase. The minimum concetration of an eletrolyte in milli-moles per litre of the electrolyte solution which required to cause the caogultion of colloidal sol is called coagution value . therefroe higher is the coagulatings power of effective ion, smaller will be the coagultion value of the electrolyte. the ability of an ion to bring about coagulation of a given colloid depends upon :

coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separtate from the continuous phase. The minimum concetration of an eletrolyte in milli-moles per litre of the electrolyte solution which required to cause the caogultion of colloidal sol is called coagution value . therefroe higher is the coagulatings power of effective ion, smaller will be the coagultion value of the electrolyte. As_(2)S_(3) sol si negatively charged. Capacity to perciopitate of a given colloid depends upon :

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