Identify the incorrect statement regarding heavy water $(D_2O)$.

  • A
    It reacts with $SO_3$ to form deuterated sulphuric acid $(D_2SO_4).$
  • B
    It is used as a coolant in nuclear reactors.
  • C
    It reacts with $CaC_2$ to produce $C_2D_2$ and $Ca(OD)_2.$
  • D
    It reacts with $Al_4C_3$ to produce $CD_4$ and $Al(OD)_3.$

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