Q58 (2024)
Two products X and Y are formed in the following reaction sequence:
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The suitable method that can be used for the separation of products X and Y is:
- (1) Continuous extraction
- (2) Differential extraction
- (3) Fractional distillation
- (4) Sublimation
### Related Formula
$$\text{Boiling Point Difference} \rightarrow \text{Fractional Distillation}$$
### Core Logic
Friedel-Crafts reaction gives toluene ($W$). Nitration of toluene produces o-nitrotoluene ($X$, B.P. $222^\circ C$) and p-nitrotoluene ($Y$, B.P. $238^\circ C$). Due to close boiling points, fractional distillation is used for separation.
### Step 1: Conclusion
Fractional distillation (Option 3) is the suitable method.
### Pattern Recognition
Ortho and para isomers with significant boiling point differences are separated by fractional distillation.
### Evaluation Rubric / Model Answer
null
### Chapter Mix
Class 11 Chemistry: Purification and Characterisation of Organic Compounds
