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8.2 Organic chemistry isomerism — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry8.2 Organic chemistry isomerism1 Mark
MCQ
Which of the following compounds shows tautomerism
  • A
    $HCHO$
  • B
    $C{H_3}CN$
  • ✓
    $C{H_3}COC{H_3}$
  • D
    $HCOOH$
✓

Answer

Correct option: C.
$C{H_3}COC{H_3}$
c
(c) Ketones show tautomerism. They form keto and enol form

$\begin{array}{*{20}{c}}
  O \\ 
  {||} \\ 
  {C{H_3} - C - C{H_3}} 
\end{array}$ $\overset {Tautomerism} \longleftrightarrow $ $\begin{array}{*{20}{c}}
  {\,\,\,OH} \\ 
  | \\ 
  {C{H_3} - C = C{H_2}} 
\end{array}$

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