In the commercial electrochemical process for aluminium extraction, the electrolyte used is
$Al{(OH)_3}$ in $NaOH$ solution
An aqueous solution of $A{l_2}{(S{O_4})_3}$
A molten mixture of $A{l_2}{O_3}$ and $N{a_3}Al{F_6}$
A molten mixture of $AlO(OH)$ and $Al{(OH)_3}$
For the electrolytic refining of aluminium, the three fused layers consist of
Bottom Layer |
Middle Layer |
Upper Layer |
If $B-Cl$ bond has a dipole moment, explain why $BCl_3$, molecule has zero dipole moment.
What is not true about borax ?
$(BN)_n$ exists in
Match List$-I$ with List$-II :$
List$-I$ | List$-II$ |
$(a)$ $\mathrm{NaOH}$ | $(i)$ Acidic |
$(b)$ $\mathrm{Be}(\mathrm{OH})_{2}$ | $(ii)$ Basic |
$(c)$ $\mathrm{Ca}(\mathrm{OH})_{2}$ |
$(iii)$ Amphoteric |
$(d)$ $\mathrm{B}(\mathrm{OH})_{3}$ | |
$(e)$ $\mathrm{Al}(\mathrm{OH})_{3}$ |
Choose the most appropriate answer from the option given below :