Which of These Are Oxidation-Reduction Reactions

question 12

Multiple Choice

Which of these are oxidation-reduction reactions?
I. PCl₃ + 3H₂O → 3HCl + H₃PO₃
II. Fe₂O₃ + 3CO → 2Fe + 3CO₂
III. CaCO₃ + HClO₃ → Ca(ClO₃) ₂ + CO₂ + H₂O

• A)I only
• B)II only
• C)I and II
• D)I and III
• E)I, II, and III

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Payoff

The act of completely repaying a loan, including the principal amount and any accrued interest, thereby fulfilling the borrower's obligations.

Sale

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The fundamental formula representing the relationship between a company's assets, liabilities, and owners' equity (Assets = Liabilities + Equity).

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