${H_3}B{O_3}\,\xrightarrow{{{T_1}}}X\,\xrightarrow{{{T_2}}}Y\,\xrightarrow{{\operatorname{Re} d\,\,\,hot}}{B_2}{O_3}$

if $T_1 < T_2$ then $X$ and $Y$ respectively are

  • A

    $X =$ Metaboric Acid, $Y =$ Tetraboric acid

  • B

    $X =$ Tetraboric Acid, $Y =$ Metaboric acid

  • C

    $X =$ Borax, $Y =$ Metaboric acid

  • D

    $X =$ Tetraboric Acid, $Y =$ Borax

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