The Question is from neet-chemistry , and it was created by the author A.RAMA NAGESWARARAO

Question

A mixture of benzene and $CHC{l_3}$ is separated by

A.RAMA NAGESWARARAO · Accepted Answer

## CORE INFORMATION
✓ **Answer**: D
## CONCEPT FRAMEWORK
**Primary Concept**: Separation Techniques
**Related Topics**: Physical Properties, Boiling Points, Intermolecular Forces
**Prerequisites**: Knowledge of different separation techniques and their applications.
## SOLUTION PATHWAY
**Given Information**:
    * Mixture of benzene and chloroform ($CHCl_3$).
    * Need to choose the appropriate separation technique.
**Method & Steps**:
    1. **Analyze the properties of the components**: Benzene and chloroform are both liquids at room temperature and are miscible (they mix together). They have different boiling points. Benzene's boiling point is 80.1°C, and chloroform's boiling point is 61.2°C.
        Reasoning:  The difference in boiling points is key here. Miscible liquids with different boiling points are best separated by distillation.
    2. **Evaluate the suitability of each option**:
        * Sublimation: Used for solids that directly convert to gas, not applicable to liquids.
        * Separating funnel: Used for immiscible liquids, benzene and chloroform are miscible.
        * Crystallization: Used to purify solids from a solution, not applicable to miscible liquids.
        * Distillation:  Separates liquids based on their boiling point differences. Since benzene and chloroform have different boiling points, this is the suitable technique.
        Working:  The liquid with the lower boiling point will vaporize first, then condense, leading to separation.
    3. **Choose the correct technique**: Distillation is the appropriate technique to separate miscible liquids with different boiling points.
        Result: Distillation is the correct answer.
        Verification: Distillation is known to be effective for separating miscible liquids based on their boiling point.
 ## OPTION ANALYSIS
[A] :x: Sublimation is used to separate solid mixtures where one component can sublime, it's not suitable for liquid mixtures.
[B] :x: Separating funnel is used to separate immiscible liquids, not for miscible liquids like benzene and chloroform.
[C] :x: Crystallization is used for separating a solid from a solution, not suitable for liquid mixtures.
[D] ✓: Distillation is used to separate miscible liquids based on their boiling point differences.
 ## LEARNING AIDS
**Common Mistakes**:
    1. Confusing separation techniques: Mistaking when to use distillation vs. separating funnel.
        How to avoid: Pay attention to whether the liquids are miscible or immiscible.
    2. Not understanding boiling point significance: Forgetting that distillation relies on boiling point differences.
        How to avoid: Review the principle of distillation and its requirements.
**Quick Tips**:
    1.  Miscible liquids with different boiling points = Distillation.
    2.  Immiscible liquids = Separating funnel.

A.RAMA NAGESWARARAO · Answer

Sublimation

A.RAMA NAGESWARARAO · Answer

Separating funnel

A.RAMA NAGESWARARAO · Answer

Crystallisation

A.RAMA NAGESWARARAO · Answer

The correct Option is "Distillation"

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