For the electrolytic production of aluminium, $(i)$ the cathode and $(ii)$ the anode are made of

Outermost electronic configuration of a group $13$ element, $E$, is $4 \,\mathrm{~s}^{2}, 4 p^{1}$. The electronic configuration of an element of $p$-block period-five placed diagonally to element, $E$ is :

The formation of molecular complex $BF_3 – NH_3$ results in a change in hybridization of boron

Give uses of boron and its compound. 

Draw structure of diboren.