Identify the product $\mathrm{P}$ in following reaction

Identify the product $\mathrm{P}$ in following reaction

1. R-CHO
2. R-CO-R'
3. $\mathrm{R}-\mathrm{COOH}$
4. $\mathrm{R}-\mathrm{CH}_3$

Asked in: MHT CET 2022 (11 Aug Shift 1)

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