Question

why blue colour flame is called non luminous and yellow colour flame is called Luminous​

Answer 1

Answer:

A non-luminous flameundergoes complete combustion as it draws much more oxygen and gets much hotter. ... The outermost zone of the flame is blue in colourand it is the hottest part. This is due to complete combustion. The middle zone is moderately hot and is yellow in colour.

Explanation:

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Answer 2

Answer:

because blue colour flame don't gives out light but yellow colour flame gives light that's why.

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