Question

The following is an extract from ‘Metals in the Service of
Man, Alexander and Street/Pelican 1976' :
‘Alumina (aluminium oxide) has a very high melting
point of over 2000°C so that it cannot readily be
liquefied. However, conversion of alumina to aluminium
and oxygen, by electrolysis, can occur when it is
dissolved in some other substance.'
(a) Which solution is used to react with bauxite as a
first step in obtaining pure aluminium oxide ?
(b) The aluminium oxide for the electrolytic extraction
of aluminium is obtained by heating aluminium
hydroxide. Write the equation for this reaction.
(c) Name the element which serves both as the anode
and the cathode in the extraction of aluminium.​

Answer 1

Answer:

I think answer C is the right answer