Go through the following question and provide the answer:
Analyse the given equation:
\(Mg + 2HCl → MgCl_2 +H_2\)
\(Mg + 2HCl → MgCl_2 +H_2\)
i. Define oxidation reaction.
A reaction in which is known as oxidation reaction.
ii. Identify the correct change in oxidation states.
iii. Identify the reducing agent.