Question no 3 Name a non-metal that has
metallic lustre and
Ans. (i) Galv anising
Q.3. Alumiruum is extracted from its chief
ore. bauxite. ore is first
and then the nwtal is extracted from it
thr— balanced equati«n
puHic•tim bauxite by
(Y an equation for the reacticm
which take place at the anode
during extraction of aluminium
by the electrolytic process.
Mention a reason for the use oi
alum•nium in thermite welding.
A. 0) • 2NaAIO,