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@@ -1512,23 +1512,26 @@ Bell metal & Cu (78\%), Sn (22\%) & Resonant, hard & Bells, cymbals \\
 
 \textbf{Iodoform test:} Specific for compounds with \ce{CH3CO-} or \ce{CH3CH(OH)-} structure.
 
-\section{Hydrocarbons and their Halogen derivatives}
+\section{Name of organic compounds}
 
-\section{Alicyclic compounds and aromatic compounds}
+\subsection{Hydrocarbons and their Halogen derivatives}
 
-\section{Alcohol, phenols, ketones and aldehyde}
+\subsection{Alicyclic compounds and aromatic compounds}
 
-\section{Carboxylic acids and esters}
+\subsection{Alcohol, phenols, ketones and aldehyde}
 
-\section{Amines, amides and nitriles}
+\subsection{Carboxylic acids and esters}
 
-\section{Thiols and thioethers}
+\subsection{Amines, amides and nitriles}
+
+\subsection{Thiols and thioethers}
+
+\subsection{Organic compounds in everyday life}
 
 \section{Macromolecule}
 
 \section{Plastics}
 
-\section{Organic compounds in everyday life}
 
 \end{document}