Question

Formation of Iron sulphide from Iron and Sulphur is an example for temporary change true or false

Answer 1

Answer:

false is not an example of temporary change it is a permanent change as

when reaction occurs between iron and sulphur new product iron sulphide is formed. heat is evolved. in a ratio of 7:8

by mass . and we cannot get back iron or sulphur from iron sulphide. and can niether attracted to magnet as iron nor dissolved in carbon disulphide as sulphur does .

Answer 2

Answer:

No new substance is formed. Example: The mixture of iron and sulphur does not form any new substance. ... Example: When iron and sulphur particles are mixed, heat energy is neither given out nor absorbed. It is a temporary change and can be reversed by removing the cause of the change.