1-butyne on oxidation with hot alkaline $\mathrm{KMnO}_4$ would yield. Which of the following as end product?

• A

  $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{COOH}$
• B

  $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}$
• Correct answer
  C

  $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}+\mathrm{CO}_2+\mathrm{H}_2 \mathrm{O}$
• D

  $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}+\mathrm{HCOOH}$

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