Question

Identify and name the functional groups present in the following compounds.

1. \[\begin{array}{cc}
   \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{..}\\
   \phantom{}|\phantom{....}|\phantom{....}|\phantom{..}\\
   \ce{H - C - C - C - OH}\\
   \phantom{}|\phantom{....}|\phantom{....}|\phantom{..}\\
   \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{..}\\
   \end{array}\]
2. \[\begin{array}{cc}
   \phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{....}\\
   \phantom{...}|\phantom{....}|\phantom{....}||\phantom{....}\\
   \ce{H - C - C - C - OH}\\
   \phantom{...}|\phantom{....}|\phantom{.........}\\
   \phantom{}\ce{H}\phantom{...}\ce{H}\phantom{.......}\\
   \end{array}\]
3. \[\begin{array}{cc}
   \phantom{......}\ce{H}\phantom{....}\ce{H}\phantom{....}\ce{O}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{.......}\\
   \phantom{....}|\phantom{....}|\phantom{....}||\phantom{....}|\phantom{....}|\phantom{....}\\
   \ce{H} - \ce{C} - \ce{C} - \ce{C} - \ce{C} - \ce{C} - \ce{H}\\
   \phantom{....}|\phantom{.....}|\phantom{........}|\phantom{....}|\phantom{....}\\
   \phantom{....}\ce{H}\phantom{....}\ce{H}\phantom{........}\ce{H}\phantom{..}\ce{H}\phantom{.....}\\
   \end{array}\]
4. \[\begin{array}{cc}
   \phantom{......}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{......}\\
   \phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}\\
   \ce{H - C - C - C = C - H}\\
   \phantom{....}|\phantom{....}|\phantom{.............}\\
   \phantom{....}\ce{H}\phantom{...}\ce{H}\phantom{.............}
   \end{array}\]

Answer 1

1.  Alcohol
2. Carboxylic acid
3. Ketone
4. Alkene