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प्रश्न
The substance that does not burn with flame is
विकल्प
LPG
camphor
dry grass
charcoal
उत्तर
charcoal
Explanation -
Charcoal is a solid fuel which does not vaporise on heating. So, charcoal does not burn by producing a flame. It only glows on combustion.
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संबंधित प्रश्न
Make labeled diagram of a candle flame.
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?
Write True/False against the following statement and also correct the false statement.
The substances which vaporise during burning, give 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?
Which is the luminous part of the flame?
Substances which vapourise during burning produce ______.
Match the following:
| 1. | White flame | a. | Table salt |
| 2. | Indigo flame | b. | Bleaching powder |
| 3. | Blue flame | c. | Potassium chloride |
| 4. | Orange flame | d. | Epsom salt |
Name a few substances which produce flames on burning.
Write a note on flame.
Explain the structure of a candle flame.
