Identify compound A from following reaction $\mathrm{A}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{MgBr}…

Identify compound A from following reaction $\mathrm{A}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{MgBr} \underset{\text { ether }}{\stackrel{\text { dir }}{\longrightarrow}} \mathrm{B} \stackrel{\mathrm{H}_3 \mathrm{O}^{+}}{\longrightarrow} 3-$ methylpen tan-3-ol
  1. Butanal
  2. Propanone
  3. Propanal
  4. Butanone

Asked in: MHT CET 2021 (24 Sep Shift 1)

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