Question

Question #4822a

Answer 1

Both `FeCl_2` and `Na_2SO_3` can act as reducing agents

Explanation:

Oxidation is loss of electrons. Reduction is gain of electrons.

An oxidising agent takes in electrons. A reducing agent gives them out.

Both ozone and chlorine are powerful oxidising agents.

Iron(II) choride can lose electrons to form iron(III):

`Fe^(2+)rarrFe^(3+)+e`

A solution of iron(II) chloride will slowly oxidise to iron(III) in the presence of air.

Sodium sulfite is also a reducing agent:

`SO_3^(2-)+H_2OrarrSO_4^(2-)+2H^(+)+2e`

It is used as an anti - oxidant in food preservation.