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Which of the following statements about $H_3BO_3$ is not correct?

The formation of $Al_2O_3$ is accompanied by the release of a large amount of energy. This property is utilized in which of the following?

In group $13$ of the long form of the periodic table, an element $X$ has a boiling point of $T_2 \ (K)$ and a melting point of $T_1 \ (K)$. Identify the element $X$ for which $T_2 - T_1 \ (K)$ is maximum.

Which elements of group $13$,except $B$,can form tetrahedral and octahedral complexes in aqueous medium?

Draw the structure of diborene $(B_2H_4)$.