\textbf{223 –} Which statement about a droplet of oil formed by non-ionic detergent molecules in water, when lipid enters water, is correct?
\begin{enumerate}
\item[(1)] The outer surface of the droplet has a negative charge.
\item[(2)] Sodium ions are distributed inside the fatty droplet.
\item[(3)] The lipid is of the gel type, and water is the dispersing phase in it.
\item[(4)] It remains stationary in water and settles spontaneously.
\end{enumerate}