In electrolysis of aluminium oxide which of the following is added to accelerate the process
Silica
Cryolite
Nickel
Silicate
A certain salt $X$, gives the following results.
$(i)$ Its aqueous solution is alkaline to litmus.
$(ii)$ It swells up to a glassy material $Y$ on strong heating.
$(iii)$ When conc. $H_2SO_4$ is added to a hot solution of $X$, white crystal of an acid $Z$ separates out.
Write equations for all the above reactions and identify $X, Y$ and $ Z$.
The function of fluorspar in the electrolytic reduction of alumina dissolved in fused cryolite $(N{a_3}Al{F_6})$ is
Name the metals with which $Al$ can form alloy?
Soft heavy metal melts at ${30\,^o}C$ and is used in making heat sensitive thermometers the metal is
Acedic strength of Boron trihalide are in order of