Which of the following is not a chemical change?Select an answerAsublimationBcombustionCElectrolysisDRusting
Question
Which of the following is not a chemical change?Select an answerAsublimationBcombustionCElectrolysisDRusting
Solution
The answer is A: Sublimation. This is because sublimation is a physical change, not a chemical change. In sublimation, a substance changes from a solid to a gas without going through a liquid phase, but its underlying structure or composition does not change. On the other hand, combustion, electrolysis, and rusting all involve changes in the substance's chemical structure or composition, so they are considered chemical changes.
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