Which of the following options is $incorrect$?

  • A
    Tailing of mercury can be used as a test for $O_3$.
  • B
    Carbon suboxide $(C_3O_2)$ is amphoteric in nature and carbon monoxide $(CO)$ is neutral.
  • C
    Both $Ni_3B$ and $FeB$ have no $B-B$ bond.
  • D
    Both $V_3B_2$ and $NaB_{15}$ have $B-B$ bond.

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