]in the chemical reaction shown below, which element was oxidized? 4fe + 3o2 yields 2fe2o3 fe, because it gained 3 electrons fe, because it lost 3 electrons o, because it gained 2 electrons o, because it lost 2 electrons

Answer : The correct option is, Fe because it lost 3 electrons.

Explanation :

Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.

Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.

Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.

The given balanced chemical reaction is :

The oxidation-reduction half reaction will be :

Oxidation :

Reduction :

In this reaction, the oxidation state of 'Fe' changes from (0) to (+3) that means Fe lost 3 electrons and it shows oxidation and the oxidation state of 'O' changes from (0) to (-2) that means O gains 2 electrons and it shows reduction.

Therefore, the correct option is, Fe because it lost 3 electrons.

hope this

explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.