Question

before using it will be black while using it will be red after using it will be white what is the thing​

Answer 1

Answer:

Charcoal

Explanation:

Charcoal, which is black when we buy it or when not being used. It gets red in appearance when put in use means to say when burning. And eventually when it's been consumed by fire or after getting burned out or used up, changes into ashes which look grey in color