Multiple Choice
Which of the following represents an oxidation half-reaction?
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Calculate Oxidation Numbers
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What is the oxidation number of the carbon atom in carbon monoxide (CO)?
A
+2
B
-2
C
0
D
+1
Verified step by step guidance1
Recall that the oxidation number of oxygen in most compounds is usually -2.
Assign the oxidation number of oxygen in CO as -2.
Let the oxidation number of carbon be x. Since CO is a neutral molecule, the sum of oxidation numbers must be zero.
Write the equation for the sum of oxidation numbers: \(x + (-2) = 0\).
Solve for x to find the oxidation number of carbon: \(x = +2\).
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