10. With the help of an activity show that the outer most zone of the flame is the hottest zone.

The outer zone of a flame is blue:It is a non-luminous zone.In this zone,complete combustion of the fuel takes place because there is plenty of air around it.The outermost zone has the highest temperature in the flame.It is the hottest part of the flame.It is quite thin as compared to?middle?zone.

  • -1
What are you looking for?