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Which of the following is a chemical change?

Answer and explanation

Correct answer: Rusting of iron

A chemical change produces one or more new substances with different properties. During rusting, iron reacts with oxygen and moisture to form iron oxides, commonly represented as hydrated iron(III) oxide, so the original iron is chemically changed. Melting ice changes only the physical state, dissolving sugar usually allows recovery by evaporation, and tearing paper changes size and shape without forming a new substance.

Related tags

Chemical ChangeRustingPhysical ChangeIronChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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