Which of the following statements best describes isomerism in chemistry?

Question

Which of the following statements best describes isomerism in chemistry? — Exam MCQ

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C. The occurrence of compounds with the same molecular formula but different chemical properties — Isomerism is a phenomenon where different compounds share the same molecular formula (meaning they have the same number of each type of atom) but differ in the arrangement of those atoms, which leads to different chemical and physical properties. For example, both ethanol and dimethyl ether have the molecular formula C2H6O, yet ethanol is a liquid alcohol, while dimethyl ether is a gaseous ether. This difference in properties stems from the distinct arrangement of their atoms.

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A. The formation of compounds with identical chemical properties but different chemical formulas

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B. The phenomenon where different elements have the same number of protons

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D. The process by which a compound changes its state of matter

Which of the following statements best describes isomerism in chemistry?

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