Butene- 1 may be converted to butane by reaction with

• A

  $\mathrm{Sn}-\mathrm{HCI}$
• B

  $\mathrm{Zn}-\mathrm{Hg}$
• Correct answer
  C

  $\mathrm{Pd} / \mathrm{H}_2$
• D

  $\mathrm{Zn}-\mathrm{HCI}$

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