Aim: To show that soot (unburnt carbon particles) are present in the luminous zone of a candle flame.
Requirements : A candle, a matchbox, two glass rods and a pair of tongs.
Procedure : Light the candle with the help of a matchstick. Hold one of the glass rods with the pair of
tongs in the non-luminous zone of the candle flame. Then hold the other glass rod in the luminous zone
of the candle flame.
Observations: The glass rod held in the luminous zone of a candle flame gets coated with a black powdery
substance. The other glass rod held in the non-luminous zone of the candle flame remains as it is.
Explanation / Conclusion: The black powdery substance is soot or unburnt carbon particles which is
present in the luminous zone. The non-luminous zone is the zone of complete combustion and therefore
no soot is present in this zone. explain this activity in hindi aap sab khy samajh he
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Write it on Google translate it will better to understand for uh
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