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What is the primary oxidation state of chromium in CrO3?
What is the primary oxidation state of chromium in CrO3?
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Q1
What is the primary oxidation state of chromium in CrO3?
+2
+3
+6
+7
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In CrO3, chromium has a primary oxidation state of +6.
Questions & Step-by-step Solutions
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Q: What is the primary oxidation state of chromium in CrO3?
Solution:
In CrO3, chromium has a primary oxidation state of +6.
Steps: 7
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Step 1: Identify the compound CrO3. It consists of chromium (Cr) and oxygen (O).
Step 2: Know that oxygen typically has an oxidation state of -2.
Step 3: In CrO3, there are 3 oxygen atoms. So, calculate the total oxidation state contributed by oxygen: 3 oxygen atoms × -2 = -6.
Step 4: The overall charge of the compound CrO3 is neutral (0).
Step 5: Let the oxidation state of chromium be x. Set up the equation: x + (-6) = 0.
Step 6: Solve the equation for x: x - 6 = 0, so x = +6.
Step 7: Conclude that the primary oxidation state of chromium in CrO3 is +6.
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