Chemistry - Complete Pblock- Question with Solution | TestHub

${\text{H}}_{\text{3}}{\text{BO}}_{\text{3}}\underset{{\text{-H}}_{\text{2}}\text{O}}{\overset{{\text{Δ/100}}^{\text{o}}\text{C}}{\to }}{\text{HBO}}_{\text{2}}\underset{{\text{-160}}^{\text{o}}\text{C}}{\overset{\text{Δ}}{\to }}{\text{H}}_{\text{4}}{\text{B}}_{\text{2}}{\text{O}}_{\text{7}}\underset{\text{Red}\text{Hot }\text{>}{\text{250}}^{\text{o}}\text{C}}{\overset{\text{Δ}}{\to }}{\text{B}}_{\text{2}}{\text{O}}_{\text{3}}{\text{+2H}}_{\text{2}}\text{O}$