Advertisements
Advertisements
प्रश्न
The ______ temperature at which a substance catches fire is called its ______ temperature.
Advertisements
उत्तर
The lowest temperature at which a substance catches fire is called its ignition temperature.
APPEARS IN
संबंधित प्रश्न
Which is the hottest part in the flame of candle ______.
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.
Make labeled diagram of a candle 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 substance that does not burn with flame is ______.
The substances which vaporise during ______ give flame.
Anu wants to boil water quickly in a test tube. On observing the different zones of the flame, she is not able to decide which zone of the flame will be best for boiling water quickly. Help her in this activity.
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 vapourise 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?
