MCQ
Product $"A"$ is


- ✓$Ph-CH_2-OH$
- B$Ph-OH$
- C$Ph-CH=O$
- D$Ph-CO_2H$


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$\left( X \right)\,\xrightarrow{\Delta }\,\left( Y \right)$ amphoteric $ + \left( R \right) \uparrow \, + \,\left( S \right) \uparrow $
$P$ and $X$ are respectively