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Which method is used to purify aniline?

1. by steam distillation
2. by simple distillation
3. by distillation under reduced pressure
4. by solvent extraction

Correct answer: by steam distillation

Solution

Aniline is purified by steam distillation because it is steam volatile and can be separated from non-volatile impurities without heating it to its boiling point. Simple distillation is not suitable for such high-boiling compounds. Therefore, steam distillation is the correct method.

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