CH-1807
Oxidation states
Chemistry · Secondary 4 · Hard · Oxidation states
The oxidation states of carbon in four compounds are to be compared:
1. methane,
2. carbon monoxide,
3. calcium carbonate,
4. potassium cyanide,
In which pair does carbon have the same oxidation state?
1. methane,
2. carbon monoxide,
3. calcium carbonate,
4. potassium cyanide,
In which pair does carbon have the same oxidation state?
- methane and carbon monoxide
- methane and calcium carbonate
- carbon monoxide and potassium cyanide
- calcium carbonate and potassium cyanide
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