Answers2026-2027_MDCPS_2003345_Chemistry_1_B-CROxidation-Reduction — Unit testQuestion 1
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Oxidation-Reduction — Unit test

Question 1 • 2026-2027_MDCPS_2003345_Chemistry_1_B-CR

Which rule for assigning oxidation numbers is correct?

Answer
A
Hydrogen is usually –1.
B
Oxygen is usually –2.
C
A pure group 1 element is +1.
D
A monatomic ion is 0.
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