Ethane can be obtained from ethanal in one step by

  • A
    $Na-Hg + \text{water}$
  • B
    $Zn-Hg + \text{conc. } HCl$
  • C
    Aluminium isopropoxide and isopropyl alcohol
  • D
    $LiAlH_4 + \text{ether}$

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