In the above sequence of reactions $\mathrm{A}$ and $\mathrm{B}$ are



In the above sequence of reactions $\mathrm{A}$ and $\mathrm{B}$ are
  1. $\left(\mathrm{CH}_{3}ight)_{2} \mathrm{C}(\mathrm{OH}) \mathrm{CN},\left(\mathrm{CH}_{3}ight)_{2} \mathrm{C}(\mathrm{OH}) \mathrm{COOH}$
  2. $\left(\mathrm{CH}_{3}ight)_{2} \mathrm{C}(\mathrm{OH}) \mathrm{CN},\left(\mathrm{CH}_{3}ight)_{2} \mathrm{C}(\mathrm{OH})_{2}$
  3. $\left(\mathrm{CH}_{3}ight)_{2} \mathrm{C}(\mathrm{OH}) \mathrm{CN},\left(\mathrm{CH}_{3}ight)_{2} \mathrm{CHCOOH}$
  4. $\left(\mathrm{CH}_{3}ight)_{2} \mathrm{C}(\mathrm{OH}) \mathrm{CN},\left(\mathrm{CH}_{3}ight)_{2} \mathrm{C}=\mathrm{O}$

Solution

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Asked in: JEE-TOPICTESTS-CHEMISTRY

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