Question

In flame what is blue zone, why it is dark​

Answer 1

Answer:

So the movement of molten wax up away from the wick is due to phenomena called capillary action. This molten wax around the wick forms the dark zone. This dark zone is supposed to be the hottest due to the decomposed carbon particles formed during vaporization.

Explanation:

i hope this helped

Answer 2

Refer the attachment mate :D