For the Following Reaction Involving the Smelting of Iron Ore

question 45

Multiple Choice

For the following reaction involving the smelting of iron ore, the carbon in the starting materials __________ .
2 Fe₂O_3(s) + 3 C_(s)  4 Fe_(l) + 3 CO_{2 (g)}

• A) was formed by oxidation
• B) was formed by reduction
• C) is acting as an oxidant
• D) is acting as a reductant
• E) None of the above.

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Definitions:

Jet Lag

Fatigue and disorientation resulting from rapid travel through time zones and exposure to a changed light–dark cycle.

Circadian Feedback Loop

The process that regulates the body’s internal clock, typically over a 24-hour cycle, influenced by external cues like light.

SCN

Short for Suprachiasmatic Nucleus, a region in the brain responsible for controlling circadian rhythms.

Suprachiasmatic Nucleus

A small region in the brain located in the hypothalamus, responsible for controlling circadian rhythms.