Question

A thing when bought is black in colour .when used it's colour changes to red .after being used it turns white .Name the thing

Answer this I would comment the correct answer.who ever gives the correct answer will be marked as brainlliest

Answer 1

Explanation:

charcoal???

hope this is right

Answer 2

Answer:

Incense stick as while buying it is black, then while heating it is red and once it burns its ash is in grayish white shade.