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Changing shape without forming a new substance is what type of change?

Answer and explanation

Correct answer: Physical change

The governing concept is whether a change alters chemical identity. When the shape of an object is changed by cutting, bending, stretching, or moulding, the material remains the same substance and no new chemical composition is produced. This makes the change physical, so option D is correct. A chemical change would create one or more new substances with different compositions, as in burning or rusting. A nuclear change affects atomic nuclei and is unrelated to ordinary shaping. Calling the event “no change” is also incorrect because measurable physical features, especially shape, have changed even though chemical identity has not.

Related tags

Physical ChangeShape ChangeChemical IdentityNature Of MatterSome Basic Concepts Of ChemistryChemistryClass 11 Mcq

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