Which of the following is not correct regarding Orthoboric acid $(H_3BO_3)$?
- AOrthoboric acid can be prepared by the reaction of $HCl$ with $Na_2B_4O_7$.
- BOrthoboric acid releases three $H^{+}$ ions in water.
- COrthoboric acid when heated above $370 \ K$ forms $HBO_2$.
- D$HBO_2$ on further heating forms $B_2O_3$.
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