Question

The brightest zone with orange-red flame is:
A. a luminous zone with complete combustion
B. a nonluminous zone with complete combustion
C. partly burnt particles in a dark zone that are incompletely burnt
D. partly burnt particles in a dark zone that are completely burnt​

Answer 1

Answer:

I think the answer is the option "C"

Answer 2

OPTION C, partly burnt particles in a dark zone that are incompletely burnt.

Why? Because the brightest zone with orange-red flame is a luminous zone with incomplete combustion.

So, it can't be option A or B or D