Kunal took few iron turnings and mixed them well with Sulphur powder. He could separate the iron turnings with the help of a magnet. He heated the mixture for some time and tried to separate the iron turnings with the magnet but he could not. Why?
a. On heating, a chemical change takes place and a new compound is formed.
b. On heating, iron becomes non-magnetic hence, it is not attracted by magnet.
c. On heating, a physical change takes place hence iron and Sulphur get mixed up.
d. On heating, iron evaporates and only Sulphur is left behind.
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Answer:
I think on heating, a chemical change takes place and a new compound is formed
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