During the combustion of methane gas used for cooking in many Caribbean homes, carbon is oxidised. What happens to the carbon atoms during this reaction?

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Question

During the combustion of methane gas used for cooking in many Caribbean homes, carbon is oxidised. What happens to the carbon atoms during this reaction?

Accepted Answer

They lose electrons — Award 1 mark for understanding that oxidation involves the loss of electrons. In combustion, carbon atoms lose electrons to oxygen. A is incorrect — gaining electrons would be reduction. C is incorrect — equal sharing does not describe the electron transfer in oxidation. D is incorrect — carbon atoms chemically bond with oxygen, changing their oxidation state.

Answer

They share electrons equally

Answer

They gain electrons

Answer

They lose electrons

Answer

They remain unchanged

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