Which of the following pairs does not represent resonating struct… - Vidyadip

MCQ

Which of the following pairs does not represent resonating structures ?

✓
$\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - C{H_3}}
\end{array}$ and $\begin{array}{*{20}{c}}
{OH} \\
| \\
{C{H_3} - C = C{H_2}}
\end{array}$
B
C
$\begin{array}{*{20}{c}}
{\mathop {\,\,\,\,\,\,\,\,\,O}\limits^{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \oplus } - H} \\
{||} \\
{C{H_3} - C - C{H_3}}
\end{array}$ and $\begin{array}{*{20}{c}}
{\,\,\,\,\,OH} \\
| \\
{C{H_3} - \mathop C\limits_ \oplus - C{H_3}}
\end{array}$
D
$CH_2 = C = O$ and $\mathop C\limits^\Theta {H_2} - C \equiv \mathop O\limits^ \oplus $

✓

Answer

Correct option: A.

$\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - C{H_3}}
\end{array}$ and $\begin{array}{*{20}{c}}
{OH} \\
| \\
{C{H_3} - C = C{H_2}}
\end{array}$

a
$\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - C{H_3}}
\end{array}$ and $\begin{array}{*{20}{c}}
{OH} \\
| \\
{C{H_3} - C = C{H_2}}
\end{array}$ are tautomers

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$\begin{array}{*{20}{c}}
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