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Physical and Chemical Change — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYPhysical and Chemical Change2 Marks
Question
Define physical change. Give two examples for the above changes.
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Answer

Physical chagne : A temporary change in which no new substance is formed, the composition of substance remains the same, though its state, shape and size may change.
Example of Physical change:
(i) Change of water into its vapours.
(ii) Heating of iron rod.

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