MCQ
$\text{A}\xrightarrow{\text{HCN}}\text{B}\xrightarrow{\text{H}_3\text{O}^-}\text{Lactic acid}$ Identify $A.$
- A$\text{HCHO}$
- ✓$\mathrm{CH}_3 \mathrm{CHO}$
- C$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CHO}$
- D$\mathrm{CH}_3 \mathrm{COCH}_3$
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