In the Smelting of Iron from Iron Oxide According to the Equation

question 115

Multiple Choice

In the smelting of iron from iron oxide according to the equation Fe₂O₃ (s) + 3 CO(g) $\rightarrow$ 2 Fe(s) + 3 CO₂ (g) , what is the change in oxidation number for iron?

• A)(+3)
• B)(+2)
• C)0
• D)(-2)
• E)(-3)

---

Definitions:

Free Association

A psychoanalytic technique where patients are encouraged to relay thoughts and feelings as they occur, without censorship, to uncover unconscious processes.

Dream Interpretation

The process of assigning meaning to dreams.

Unipolar Depression

A mood disorder characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities, without the manic phases seen in bipolar disorder.

Mental Health Professional

A healthcare practitioner who offers services for the purpose of improving an individual's mental health or to treat mental disorders.