Question:
If dichloromethane (DCM) and water ${(H_2O)}$ are used for differential extraction, which one of the following statements is correct ?
If dichloromethane (DCM) and water ${(H_2O)}$ are used for differential extraction, which one of the following statements is correct ?
Updated On: July 22, 2025
- DCM and ${(H_2O)}$ would stay as lower and upper layer respectively in the S.F.
- DCM and ${(H_2O)}$ will be miscible clearly
- DCM and ${(H_2O)}$ would stay as upper and lower layer respectively in the separating funnel (S.F.)
- DCM and ${(H_2O)}$ will make trubid/colloidal mixture
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The Correct Option is A
Solution and Explanation
Answer (a) DCM and ${(H_2O)}$ would stay as lower and upper layer respectively in the S.F.
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Concepts Used:
Purification of Organic Compounds
We commonly use these methods for the purification of substances:
- Simple crystallization - The most common method that we use to purify organic solids.
- Fractional crystallization - It is the process of separation of different components of a mixture by repeated crystallisations.
- Sublimation - Certain organic solids on heating directly change from solid to vapor state without passing through a liquid state. These substances are sublimable. This process is sublimation.
- Simple distillation - It is the joint process of vaporization and condensation.
- Fractional distillation - It is the process to separate a mixture of two or more miscible liquids which have boiling points close to each other
- Distillation under reduced pressure
- Steam distillation
- Azeotropic distillation
- Chromatography