$BF_3$ on hydrolysis forms
$H_3BO_3$
$HBF_4$
both $(A)$ and $(B)$
none of these
Suggest reasons why the $B-F$ bond lengths in $BF $$_{3}(130 \,pm )$ and $B F_{4}^{-}(143\, pm )$ differ.
Correct order of Lewis Acidic strength?
Give uses of boron and its compound.
Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out in the presence of
Borax on heating strongly above its melting point melts to a liquid, then solidifies to a transparent mass commonly known as Borax Bead. The transparent glassy mass consists of :