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प्रश्न
Write True/False against the following statement and also correct the false statement.
Middle zone is the hottest zone of a flame.
पर्याय
True
False
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उत्तर
This statement is False.
Correct Statement:
Outer zone is the hottest zone of a flame.
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संबंधित प्रश्न
True or False – If False give the correct answer
All fuels form flame.
Inner zone of flame : :______, outer zone of flame : :______
If 4.5kg of fuel is completely burnt and amount of heat produced stands measured at 1, 80,000 KJ what is the calorific value.
Magnesium ribbon on burning in air produces
On placing an inverted tumbler over a burning candle, the flame extinguishes after some time. This is because of non-availability of
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 |
Substances which vapourise during burning produce ______.
Name a few substances which produce flames on burning.
Write a note on flame.
Explain the structure of a candle flame.
