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Which one of the following can be oxidised to the corresponding carbonyl compound?

1. 2-hydroxypropane
2. Ortho-nitrophenol
3. Phenol
4. 2-methyl-2-hydroxypropane

Correct answer: 2-hydroxypropane

Solution

2-hydroxypropane (a secondary alcohol) can be oxidized to a carbonyl compound (ketone). The other options either lack the required functional group or are resistant to oxidation under normal conditions.

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