The sequence of reagents required to convert ethylbromide to propanal is

The sequence of reagents required to convert ethylbromide to propanal is
  1. $\mathrm{CH}_3 \mathrm{COOAg}$, DIBAL-H, $\mathrm{H}_2 \mathrm{O}$
  2. $\mathrm{CH}_3 \mathrm{COOAg}^{-} \mathrm{LiAlH}_4, \mathrm{H}_2 \mathrm{O}$
  3. $\mathrm{Mg} /$ ether, $\mathrm{HCHO}, \mathrm{H}_2 \mathrm{O}$
  4. $\mathrm{CH}_3 \mathrm{COOH}, \mathrm{LiAlH}_4, \mathrm{H}_2 \mathrm{O}$

Asked in: AP EAMCET 2024 (23 May Shift 1)

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