Which of the following is not correct regarding Orthoboric acid $(H_3BO_3)$?

  • A
    Orthoboric acid can be prepared by the reaction of $HCl$ with $Na_2B_4O_7$.
  • B
    Orthoboric acid releases three $H^{+}$ ions in water.
  • C
    Orthoboric acid when heated above $370 \ K$ forms $HBO_2$.
  • D
    $HBO_2$ on further heating forms $B_2O_3$.

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