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प्रश्न
The substances which vaporise during ______ give flame.
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उत्तर
The substances which vaporise during burning give flame.
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संबंधित प्रश्न
Make a labelled diagram of a candle flame.
Which is the hottest part in the flame of candle ______.
Inner zone of flame : :______, outer zone of flame : :______
The substances which gave very ______ ignition temperature and can easily catch fire with a flame are called ______ substances.
If you hold a piece of iron wire with a pair of tongs inside a candle flame or a Bunsen burner flame, what will you observe? Will it produce a flame?
You are provided with three watch glasses containing milk, petrol and mustard oil respectively. Suppose you bring a burning candle near these materials one by one, which material(s) will catch fire instantly and why?
Match the following:
| 1. | Inner zone | a. | Yellow |
| 2. | Outer zone | b. | Borax powder |
| 3. | Middle zone | c. | Blue |
| 4. | Green flame | d. | Black |
Name a few substances which produce flames on burning.
Explain the structure of a candle flame.
Why is the candle flame straight?
