Separation of alcohol and water by distillation — task. Science CBSE, Class 9 New.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Arun has a mixture of alcohol and water. He wants to separate them, but since the boiling points are close (alcohol \(78\  °C\), water \(100\  °C\)), he needs a suitable method.

1. Why is simple distillation not suitable for this mixture?

Water reacts with alcohol
It cannot separate liquids with closely spaced boiling points
It only works for solids
Alcohol evaporates too slowly

2. Why does alcohol vaporize first in this mixture?

Water reacts with alcohol
Alcohol is more soluble
Alcohol has a lower boiling point than water
Alcohol is lighter than water

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18. Separation of alcohol and water by distillation

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