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Assertion : For stabilisation of an emul...

Assertion : For stabilisation of an emulsion a third component called emulsifying agent is usually added.
Reason : Emulsions of oil in water are unstable and sometimes they separate into two layers on standing.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

if both assertion and reason are false

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given question, we need to analyze both the assertion and the reason provided. ### Step 1: Understanding the Assertion The assertion states that "For stabilization of an emulsion, a third component called emulsifying agent is usually added." - Emulsifying agents are substances that help stabilize emulsions by reducing the surface tension between the two immiscible liquids (like oil and water). They prevent the separation of the two phases by forming a protective layer around the dispersed droplets. ### Step 2: Understanding the Reason The reason states that "Emulsions of oil in water are unstable and sometimes they separate into two layers on standing." - This is true because emulsions, particularly oil in water (O/W) emulsions, can be unstable. Over time, the oil droplets may coalesce and rise to the top, leading to separation into two distinct layers (oil on top and water at the bottom). ### Step 3: Evaluating the Relationship between Assertion and Reason Now, we need to determine if the reason correctly explains the assertion. - Since emulsions can indeed be unstable and separate into layers, the addition of an emulsifying agent is necessary to maintain their stability. Therefore, the reason supports the assertion. ### Conclusion Both the assertion and the reason are true, and the reason provides a correct explanation for the assertion. ### Final Answer Both the assertion and the reason are true, and the reason correctly explains the assertion. ---
To solve the given question, we need to analyze both the assertion and the reason provided. ### Step 1: Understanding the Assertion The assertion states that "For stabilization of an emulsion, a third component called emulsifying agent is usually added." - Emulsifying agents are substances that help stabilize emulsions by reducing the surface tension between the two immiscible liquids (like oil and water). They prevent the separation of the two phases by forming a protective layer around the dispersed droplets. ### Step 2: Understanding the Reason The reason states that "Emulsions of oil in water are unstable and sometimes they separate into two layers on standing." ...
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