MCQ
The compound which will give negative iodoform test is
- A$C{H_3}CHO$
- B$C{H_3}C{H_2}OH$
- CIsopropyl alcohol
- ✓Benzyl alcohol
✓
Answer
Correct option: D.
Benzyl alcohol
d
$\left. \begin{gathered}
C{H_3}CHO\,\,\,\xrightarrow{{NaOH/{I_2}}}\;\;CH{I_3} \hfill \\
C{H_3}C{H_2}OH\,\,\,\xrightarrow{{NaOH/{I_2}}}\;\;CH{I_3} \hfill \\
C{H_3} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,} }\limits_{OH} - C{H_3}\;\xrightarrow{{NaOH/{I_2}}}\;CH{I_3} \hfill \\
\end{gathered} \right\}\,\,Yellow\,\,ppt.$
$\left. \begin{gathered}
C{H_3}CHO\,\,\,\xrightarrow{{NaOH/{I_2}}}\;\;CH{I_3} \hfill \\
C{H_3}C{H_2}OH\,\,\,\xrightarrow{{NaOH/{I_2}}}\;\;CH{I_3} \hfill \\
C{H_3} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,} }\limits_{OH} - C{H_3}\;\xrightarrow{{NaOH/{I_2}}}\;CH{I_3} \hfill \\
\end{gathered} \right\}\,\,Yellow\,\,ppt.$
${C_6}{H_5} - C{H_2} - OH\xrightarrow{{NaOH/{I_2}}}{\text{No}}\,\,{\text{yellow}}\,\,ppt.$
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