Dehydration of an organic acid X with concentrated $\mathrm{H}_2 \mathrm{SO}_4$ at 373 K gives $\mathrm{H}_2 \mathrm{O}$ and gas Y. The hybridisation of the carbon in Y and nature of Y are respectively

• A

  $\mathrm{sp}^2$, Neutral
• Correct answer
  B

  $\mathrm{sp}$, Neutral
• C

  $\mathrm{sp}^2$, acidic
• D

  $\mathrm{sp}^2$, acidic

Hence, the correct answer is option: 'B'.