Chemistry, asked by srsunil7647, 1 year ago

Which gas liberated when 2 bromopropane heated with alcoholic potash?

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Answered by leon3
2
2-bromopropane is heated under reflux with a concentrated solution of sodium or potassium hydroxide in ethanol. Heating under reflux involves heating with a condenser placed vertically in the flask to avoid loss of volatile liquids. Propene is formed and, because this is a gas, it passes through the condenser and can be collected.



Everything else present (including anything formed in the alternative substitution reaction) will be trapped in the flask.

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