Question

If dichloromethane $\left(DCM\right)$ and water $\left(H_{2}O\right)$ are used for differential extraction, which one of the following statements is correct ?

• A. $DCM$ and $H_{2}O$ would stay as lower and upper layer respectively in the S.F.
• B. $DCM$ and $H_{2}O$ will be miscible clearly
• C. $DCM$ and $H_{2}O$ would stay as upper and lower layer respectively in the separating funnel (S.F.)
• D. $DCM$ and $H_{2}O$ will make trubid/colloidal mixture

Answer 1

The correct option is A $DCM$ and $H_{2}O$ would stay as lower and upper layer respectively in the S.F.

• All Alkyl Halides are absolutely water insoluble.
• All Alkyl Halides are dense as compared to water.
• In a separating funnel upper layer is called layer-1 and the lower layer is called layer-2.
• So the upper layer will be with less dense $H_{2}O$ and the lower layer will be denser $DCM$.
• Hence option A is a correct answer.