Question

Your LPG stove burns with a blue flame and that of your friend with a yellow flame .whose stove needs cleaning ? Why ?

Answer 1

Your friends stove needs cleaning because when the gas stove is not clean the pores have dirt inside which  doesn't let the oxygen enter in and the flame is not hot enough and that is why it is not blue.

Answer 2

Answer:

YYour LPG stove burns with a blue flame and that of your friend with a yellow flame .whose stove needs cleaning ? Why ?