Which formulas represent compounds that are isomers of each other?

Option D.

Explanation:

Isomerism is a phenomenon where by two or more compounds have the same molecular formula but different structural patterns. The compounds involved are called isomers.

Option A has two different compound with two different molecular formula. Hence they are not isomers.

Option B has two different compound with two different molecular formula. Hence they are not isomers

Option C can not be called isomers because Isomerism can not occur in compound having just 1 carbon atom.

Option D has two different compound with the same molecular formula as C3H8O and their structure are different. Hence they areisomers.

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