Question

Write a balanced oxidation-reduction equation showing how zinc metal reduces the ferrous ion (Fe2+) , to iron metal.

Answer 1

Answer:
`Zn+Fe^(2+)\rightarrow Zn^(2+)+Fe`

Explanation:

Oxidation reaction : A reaction in which electrons are lost and there is an increase in oxidation state.

`Zn\rightarrow Zn^(2+)+2e^-`

Reduction reaction : A reaction in which electrons are gained and there is a decrease in oxidation state number.

`Fe^(2+)+2e^-\rightarrow Fe`

A redox reaction is one in which oxidation and reduction takes place in a single reaction.

`Zn+Fe^(2+)\rightarrow Zn^(2+)+Fe`

Answer 2

In this reaction Zn acts as reducing agent i.e. reducing Fe+2 to Fe and getting oxidized by itself. As shown below;