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Question
Inner zone of flame : :______, outer zone of flame : :______
Fill in the Blanks
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Solution
Inner zone of flame : : Black, outer zone of flame : : Blue
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Flame
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RELATED QUESTIONS
Make labeled diagram of a candle flame.
The substance that does not burn with flame is ______.
The ______ temperature at which a substance catches fire is called its ______ temperature.
The substances which vaporise during ______ give flame.
Match the following for the flame of a candle.
| Column A |
Column B |
Column C |
| (a) hottest part | (i) innermost zone of unburnt wax vapours | (x) blue |
| (b) moderately hot | (ii) middle zone of partial combustion | (y) black |
| (c) least hot | (iii) outer zone of complete combustion | (z) yellow |
Which is the luminous part of the flame?
Match the following:
| 1. | Inner zone | a. | Yellow |
| 2. | Outer zone | b. | Borax powder |
| 3. | Middle zone | c. | Blue |
| 4. | Green flame | d. | Black |
Write a note on flame.
Explain the structure of a candle flame.
Why is the candle flame straight?
