question_answer

An important reaction of acetone is autocondensation in presence of concentrated sulphuric acid to give the aromatic compound [KCET 2003; MP PET 1986, 89; MP PMT 1992, 2000]

A)                 Mesitylene        

B)                 Mesityl oxide

C)                 Trioxan

D)                 Phorone

Correct Answer: A

Solution :

                \[3C{{H}_{3}}COC{{H}_{3}}\underset{-3{{H}_{2}}O}{\mathop{\xrightarrow{Conc.{{H}_{2}}S{{O}_{4}}}}}\,\]