Which of the following is a physical change? a)Oxidation b)Reduction – InterviewSolution

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1.	Which of the following is a physical change? a)Oxidation b)Reduction c)Sublimation d)Decomposition
Answer» c) sublimation is a physical change for there is no change in the CHEMICAL composition of sublimable SUBSTANCES. They just change in the STATE of matter ( solid to gas ).

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