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Select the incorrect reaction among the following:

1.	\(\mathrm{CH}_3 \mathrm{COCl} \xrightarrow[\Delta]{\mathrm{H}_2 \mathrm{O}} \mathrm{CH}_3 \mathrm{COOH}\)
2.
3.	\(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH} \xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{\oplus}]{\text { (i) } \mathrm{KMnO}_{4}/\mathrm{OH^{-} }} \mathrm{CH}_3 \mathrm{COOH}\)
4.	\(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{OH} \xrightarrow{\mathrm{CrO}_3-\mathrm{H}_2 \mathrm{SO}_4} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}\)