Which of the following describes an element that is oxidized in a reaction a it gains electrons during a reaction b it has a decrease in it oxidation number c al yields al3+ + 3e- d f2 + 2e- yields 2 f-

C. Al yields

Explanation: Oxidation is a process in which loss of electrons take place and thus results in increase in oxidation number of the element.

Reduction is a process in which gain of electrons take place and thus results in decrease in oxidation number of the element.