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Unit - 2.1 Physical and Chemical Changes — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYUnit - 2.1 Physical and Chemical Changes1 Mark
Question
Define ‘ chemical change ‘.
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Answer

The chemical composition of the original substance remains the same, even though its physical. properties like colour, state, shape, size etc.

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