Aluminium chloride exists as dimer, $A{l_2}C{l_6}$ in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives
${[Al{(OH)_6}]^{3 - }} + 3HCl$
${[Al{({H_2}O)_6}]^{3 + }} + 3HCl$
$A{l^{3 + }} + 3C{l^ - }$
$A{l_2}{O_3} + 6HCl$
In electrolysis of aluminium oxide which of the following is added to accelerate the process
In the electrolysis of alumina, cryolite is added to
A layer of coke is spread over bauxite during electrolytic reduction of alumina by Hall-Heroult process. This layer acts as a/an:
Boron is unable to form $BF_{6}^{3-}$ on. Explain.
Assertion : Coloured cations can be identified by borax bead test.
Reason : Transparent bead $(NaBO_2 + B_2O_3)$ forms coloured bead with coloured cation.