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Carbon atoms are oxidised in reaction(s) A - VCE - SSCE Chemistry - Question 9 - 2006 - Paper 1
Question 9
Carbon atoms are oxidised in reaction(s) A. Q only. B. S and Q only. C. Q and T only. D. Q, R and T only.
Worked Solution & Example Answer:Carbon atoms are oxidised in reaction(s) A - VCE - SSCE Chemistry - Question 9 - 2006 - Paper 1
Step 1
Q and T only.
Answer
To determine which reactions involve the oxidation of carbon atoms, we must analyze each reaction (Q, R, S, and T) for the changes in the oxidation state of carbon.
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Identify Oxidation: Oxidation involves an increase in the oxidation state of carbon. This can be determined by examining the reactants and products of each reaction.
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Evaluate Reaction Q: If we find that in reaction Q, carbon atoms increase in oxidation state, then Q is a valid answer.
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Evaluate Reaction R: Check if reaction R results in the oxidation of carbon. If no oxidation occurs, it is not counted.
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Evaluate Reaction S: Similarly, analyze reaction S. If oxidation does not occur, this reaction should also be excluded.
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Evaluate Reaction T: Finally, ensure that reaction T causes an increase in the oxidation state of carbon atoms.
Upon completing these evaluations, we conclude that only Q and T involve the oxidation of carbon, thus confirming the correct choice is C.