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Standard VIII
Chemistry
Zones of Candle Flame
Question

Which of the following flames is produced by a candle?
  1. Non-luminous flame(blue)
  2. Light giving flame
  3. Yellow luminous flame
  4. Green flame

A
Non-luminous flame(blue)
B
Green flame
C
Light giving flame
D
Yellow luminous flame
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Solution
Verified by Toppr

There are two types of flame that is produced by candle:
(a) Luminous flame (b) Non-luminous flame
Non-luminous flame is a result of complete combustion and is blue in colour.
Luminous flame is a result of incomplete combustion and is yellow bright in colour.
Hence option B and D are correct.

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