What is the colour of the coldest flame?

by Yogi P - December 27, 2024

Find the answer:- What is the colour of the coldest flame?


What is the colour of the coldest flame?

  • A Blue
  • B White
  • C Red
  • D Yellow

Answer: (C) Red


The colour of the coldest flame is Red and the Red flame has the lowest temperature in the flame spectrum.

Explanation in details

  • Red flame: Indicates the lowest temperature in the flame spectrum. It typically occurs during incomplete combustion or when the flame is comparatively cooler. For example when we see, a candle flame often has a red or orange glow at its edges, where the temperature is lower.
  • Blue flame: Blue flame indicates the highest temperature. It indicates complete combustion.
  • In comparison:
    • Yellow or orange flames are hotter than red.
    • Blue flames are the hottest, indicating complete combustion.


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What is the colour of the coldest flame?

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