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.

Kunal took few iron turnings and mixed them well with Sulphur powder.

1.	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.
Answer» I think on HEATING, a chemical CHANGE TAKES place and a new compound is formed