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
Answers
Answered by
3
(A) i only ,
A piece of magnesium gives of bright flame when burnt .
A piece of magnesium gives of bright flame when burnt .
anu522:
hey sis its wrong..
question is about physical change
Answered by
6
your answer will be B) ii only
that is A piece of iron glows red when heated strongly.
it is a physical change because when the iron cools down a new compound/ substance is not formed..
hope helped..
that is A piece of iron glows red when heated strongly.
it is a physical change because when the iron cools down a new compound/ substance is not formed..
hope helped..
Oh sorry , in hustle bustle , i unable to read it properly !! thanks dear
wlcm
no problem
:)
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