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Subjects
Science CBSE
Class 8
Combustion and flame
Textbook questions
23.
NCERT Exemplar XIII
Exercise condition:
3
m.
Short answer the following question:
Match the following for the flame of a candle.
Column A
Column B
(zone)
Column C
(colour)
(a)
. hottest part
(i). innermost zone of unburnt wax vapours
(iii). outer zone of complete combustion
(ii). middle zone of partial combustion
(x) blue
(y) black
(z) yellow
(b)
. moderately hot
(i). innermost zone of unburnt wax vapours
(iii). outer zone of complete combustion
(ii). middle zone of partial combustion
(y) black
(x) blue
(z) yellow
(c)
. least hot
(ii). middle zone of partial combustion
(iii). outer zone of complete combustion
(i). innermost zone of unburnt wax vapours
(y) black
(x) blue
(z) yellow
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