Which of the following is structure of a separating funnel?

A separating funnel is used to separate two immiscible liquids having different densities.

When the mixture is allowed to stand undisturbed, the heavier liquid settles at the bottom while the lighter liquid forms the upper layer.

Option $$\mathrm{A}$$ represents the correct structure of a separating funnel.

It contains a stopper at the top, allowing the funnel to be closed and shaken safely during liquid-liquid extraction.

It also contains a stopcock at the bottom, which allows controlled removal of the denser lower layer.

The tapered shape helps produce a clear interface between the two liquid layers, enabling precise separation. Thus, the right option is A.