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प्रश्न
True or False – If False give the correct answer
All fuels form flame.
पर्याय
True
False
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उत्तर
False
Correct statement: All fuels do not form flame.
APPEARS IN
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 : :______
Picture based question
Arul and Aakash were doing an experiment in which water was to be heated in a beaker. Arul kept the beaker near the wick in the yellow part of candle flame. Aakash kept the beaker in the outer most part to the flame. Whose water will get heated in a shorter time?
The substances which gave very ______ ignition temperature and can easily catch fire with a flame are called ______ substances.
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 |
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?
Which is the luminous part of the flame?
Name a few substances which produce flames on burning.
Write a note on flame.
