Answer the following question:
 
A metal X, commonly used for galvanising iron, is extracted from its sulphide ore Y. The ore is first converted into an oxide by heating in air and then reduced using a suitable reducing agent to obtain the metal.

i. Identify the metal X.
ii. Name the sulphide ore Y.
iii. Write the balanced chemical equations involved in the extraction of X.
 
i. The metal X is
 
ii. The sulphide ore Y is
 
iii. The balanced chemical equations involved are: