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Discussions (19)
it's 4 zones.
Non luminous is 3 zones.
check New school chemistry by Ababio Pg 289
chapter 16, topic=Air.
hello My school abeeg, change this thing biko to three .I need d mark abeeg.
Explanation:Three zones : an inner zone of unburned gas; a middle zone called the reduction zone or reducing flame, since there the supply of oxygen is deficient and the oxygen is therefore removed from an oxide placed in it; and an outer, or oxidizing, zone.
this is from google o
Can my school explain why is 4 and not 3
provide an explanation please
we're learning here,you can't just choose an answer with no explanation
so annoying 
Three zones, for example, are apparent in the Bunsen burner flame: an inner zone of unburned gas; a middle zone called the reduction zone or reducing flame, since there the supply of oxygen is deficient and the oxygen is therefore removed from an oxide placed in it; and an outer, or oxidizing, zone. So the answer is B(3).
pls people who said the answer is 3 is there a textbook evidence or anything pls take a picture and post lets be sure
