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प्रश्न
What is a fire extinguisher ? What is the substance used in the modern type of fire extinguishers ? How is it an improvement over the soda acid-type and the foam-type fire extinguishers ?
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उत्तर
Fire Extinguisher— Fire extinguishers are a device in which carbon dioxide is produced in different forms for use as the extinguishing agent. It is a modem type of fire extinguisher in which liquid carbon dioxide is stored in a steel cylinder under pressure. Soda-acid and foam types of extinguisher cannot be used for extinguishing fire as they prepared in water, which conducts electricity and there can be short circuiting, causing another fire.
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संबंधित प्रश्न
State the term:
The property by which atoms of an element link together to form long chain or ring compounds.
What is the atomic number of carbon ?
In which compound forms does carbon occur?
State how carbon occurs in the free state and in the combined state.
Name the following:
An acid formed when carbon dioxide is dissolved in water under pressure.
Compounds with same molecular formula and different structural formula are known as ______.
Match the following.
| 1. | Alkyne | Bucky Ball |
| 2. | Andre Geim | Oxidation |
| 3. | C60 | Graphene |
| 4. | Thermocol | Triple bond |
| 5. | Combution | Polystyrene |
The ability of carbon to form ______ is the main reason for the formation of various classes of carbon compounds.
Carbon monoxide displaces ______ from hemoglobin.
There is more abundance of carbon on the earth.
