Identify Finkelstein reaction from the following.

1. $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}+\mathrm{AgF} \stackrel{\Delta}{\longrightarrow} \mathrm{C}_2 \mathrm{H}_5 \mathrm{~F}+\mathrm{AgCl}$
2. $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}+\mathrm{Nal} \stackrel{\text { acetone }}{\longrightarrow} \mathrm{C}_2 \mathrm{H}_5 \mathrm{I}+\mathrm{NaCl}$
3. $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}+\mathrm{NaOH} \rightarrow \mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}+\mathrm{NaCl}$
4. $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}+\underset{\text { (alc) }}{(\mathrm{KCN}) \stackrel{\Delta}{\longrightarrow}} \mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}+\mathrm{KCl}$

Solution

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

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