Question

Shyamalan cooking potato curry on a Chula. To surprise observe that the copper Vessel was getting blackened from outside. It may due to

Answer 1

because of heat it get colour as heat it may help u

Answer 2

Answer:

improper combustion of fuel

Explanation:

incomplete/improper combustion of fuel results in unburnt carbon particles/soot.therefore there is a black layer on the copper vessel from outside . hope this helps...let me know if it is wrong....