Question

Action of heat on blue vitriol is a physical and chemical change justify

Answer 1

Answer:

When blue vitriol is a gradually heated to about 800oC, it undergoes a physical change to form a white powder. On adding a drop of water to the white powder, it changes back to blue.

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Answer 2

Answer:

When blue vitriol is a gradually heated to about 800oC, it undergoes a physical change to form a white powder. On adding a drop of water to the white powder, it changes back to blue.

Explanation: