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
Correct Answer:

Verified
Correct Answer:
Verified
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