Aluminium chloride in acidified aqueous solution forms an ion having geometry
Octahedral
Square Planar
Tetrahedral
Trigonal bipyramidal
Which of the following form dimeric halides
In the reaction ${B_2}{O_3} + C + C{l_2} \to A + CO.$ The $A$ is
Which of the following is most acidic
For the electrolytic production of aluminium, $(i)$ the cathode and $(ii)$ the anode are made of
When $AlCl_3·6H_2O$ is strongly heated, then it forms