MCQ
Oxalic acid when reduced with zinc and ${H_2}S{O_4}$ gives
- AGlyoxallic acid
- BGlyoxal
- ✓Glycollic acid
- DGlycol
✓
Answer
Correct option: C.
Glycollic acid
c
$\underset{\text{Oxalic}\,\,\text{acid}}{\mathop{\begin{matrix}
COOH \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
COOH \\
\end{matrix}}}\,\,+\,4\,[H]$ $\underset{{{H}_{2}}S{{O}_{4}}}{\mathop{\xrightarrow{Zn}}}\,$ $\begin{matrix}
C{{H}_{2}}OH \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
COOH\,\, \\
\end{matrix}+{{H}_{2}}O$
$\underset{\text{Oxalic}\,\,\text{acid}}{\mathop{\begin{matrix}
COOH \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
COOH \\
\end{matrix}}}\,\,+\,4\,[H]$ $\underset{{{H}_{2}}S{{O}_{4}}}{\mathop{\xrightarrow{Zn}}}\,$ $\begin{matrix}
C{{H}_{2}}OH \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
COOH\,\, \\
\end{matrix}+{{H}_{2}}O$
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