The reaction,water gas $(CO + H_2) + H_2$ at $673 \ K$ and $300 \ \text{atm}$ in the presence of the catalyst $Cr_2O_3/ZnO$ is used for the manufacture of:

  • A
    $HCHO$
  • B
    $HCOOH$
  • C
    $CH_3OH$
  • D
    $CH_3COOH$

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