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Combustion & Flame Quiz
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Why do we get soot if a spoon is placed in the middle zone of the flame?
Because of deposition of unburnt carbon particles.
Why does charcoal not produce flame?
Because it does not vaporise on burning.
In which zone complete combustion of fuel take place?
The non luminous/ outermost zone
In which zone partial combustion of fuel take place?
The middle zone /luminous zone
What is the colour of outer most flame?
Blue
What is the colour of inner most flame?
Black
Which zone of candle is the coldest?
The innermost zone
Which zone of candle is the hottest?
The non luminous/ outermost zone
How many zones are there in a flame?
Three