The function of fluorspar in the electrolytic reduction of alumina dissolved in fused cryolite $(N{a_3}Al{F_6})$ is
The tendency to form monovalent compounds among the Group $13$ elements is correctly exhibited in :
$AlF_3$ is soluble in $HF$ only in presence of $KF.$ It is due to the formation of
Three pairs of compounds are given below. Identify that compound in each of the pairs which has group $-13$ element in more stable oxidation state. Give reason for your choice. State the nature of bonding also. $(A)$ $TlCl_3, TlCl$ $(B)$ $AlCl, AlCl$ $(C)$ $InCl_3, InCl$
In the commercial electrochemical process for aluminium extraction, the electrolyte used is