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Which change is a change of state?

Answer and explanation

Correct answer: Boiling of water

Boiling of water is a physical change in which water changes from the liquid state to the gaseous state (water vapour). No new substance is formed. Burning paper, curd formation, and rusting of iron are chemical changes because new substances are produced. Exam tip: in a change of state, the chemical composition of the substance remains unchanged.

Related tags

ChemistryNature Of MatterChange Of StatePhysical ChangeChemical ChangeClass 11Some Basic Concepts Of ChemistryClass 11 Mcq

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