Two changes are stated below: (i) A piece of magnesium gives of bright – McqOptions

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1.	Two changes are stated below: (i) A piece of magnesium gives of bright flames when burnt. (ii) A piece of iron glows red when heated strongly. Which of the above changes is a physical change?
A.	i only
B.	ii only
C.	Both i and ii
D.	neither i nor ii
Answer» C. Both i and ii

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