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प्रश्न
Can you guess why fire extinguishers throw a stream of carbon-di-oxide while putting - off the fire?
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उत्तर
The reasons behind fire extinguishers throw a stream of CO while putting off fire:-
- CO2 is a colorless and in normal concentrations, odorless gas. It doesn’t react with burning materials, so it doesn’t create any toxic or other by-products while putting off the fire.
- Carbon dioxide doesn’t conduct electricity, making it an ideal fire suppressant for use in places where a large amount of electricity may be present.
- CO2 acts on fires in two ways: The release of the gas under pressure has a cooling effect, as can be seen by the resulting mist cloud and ice particles; the gas also displaces the oxygen that’s necessary to maintain combustion.
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संबंधित प्रश्न
What do you observe when Calcium is heated and then tested with moist blue and red litmus – paper?
Name three noble gases present in the air. State their one industrial use
Classify Carbon dioxide. Also give a balanced equation to prepare it.
Give a reason why nitrogen is filled in food packets and not oxygen.
Complete the statement given below by filling in the blank with the correct word from the words given:
The component of air which is variable in air above sea level and in air in general ______.
Match the following
| 1. | Moving Air | Photosynthesis |
| 2. | Layer in which we live | Troposphere |
| 3. | Stratosphere | Wind |
| 4. | Oxygen | Ozone layer |
| 5. | carbon-di-oxide | Combustion |
Write about the reaction of nitrogen with non metals.
Oxygen is used to oxidize ______.
Nitrogen is about two times more soluble in water than oxygen.
Make sentences using the given set of words.
99%, oxygen, nitrogen, air, together
