Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
Iron wire will become red hot and glow. It will not produce a flame.
APPEARS IN
संबंधित प्रश्न
Make a labelled diagram of a candle flame.
Abida and Ramesh were doing an experiment in which water was to be heated in a beaker. Abida kept the beaker near the wick in the yellow part of the candle flame. Ramesh kept the beaker in the outermost part of the flame. Whose water will get heated in a shorter time?
Which is the hottest part in the flame of candle ______.
True or False – If False give the correct answer
All fuels form flame.
Inner zone of flame : :______, outer zone of flame : :______
Magnesium ribbon on burning in air produces
The substance that does not burn with flame is ______.
The substances which gave very ______ ignition temperature and can easily catch fire with a flame are called ______ substances.
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. | White flame | a. | Table salt |
| 2. | Indigo flame | b. | Bleaching powder |
| 3. | Blue flame | c. | Potassium chloride |
| 4. | Orange flame | d. | Epsom salt |
