An organic compound ' $X$ ' on treatment with pyridinium chloro chromate in dichloromethane gives compound '…

An organic compound ' $X$ ' on treatment with pyridinium chloro chromate in dichloromethane gives compound ' $Y$ '. Compound ' $Y$ ', reacts with $\mathrm{I}_2$ and alkali to form triiodomethane. The compound ' $X$ ' is
  1. $\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$
  2. $\mathrm{CH}_3 \mathrm{CHO}$
  3. $\mathrm{CH}_3 \mathrm{COCH}_3$
  4. $\mathrm{CH}_3 \mathrm{COOH}$

Asked in: AP EAMCET 2007

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