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प्रश्न
Give reason for the following:
Soda acid and foam types of fire extinguisher are not used for extinguishing electrical fires.
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उत्तर
In both of these fire extinguishers, the solutions are prepared in water, which conducts electricity. As a result an electric shock might result, which might lead to short- circuiting and another fire.
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संबंधित प्रश्न
Choose the correct alternative.
Carbon forms innumerable compounds because
Fill in the blank
...............is used in making black shoe polish.
FILL IN THE BLANK
.................... is the main gaseous compound of carbon.
Write three chemical properties of carbon.
List the conclusions you will draw while studying the following properties of ethanoic acid :
(a) Odour
(b) Solubility in water
(c) Effect on litmus paper
(d) Reaction with sodium hydrogen carbonate
Starting from carbon dioxide how would you obtain a black particles of carbon.
[Give balanced equations for the same]
Select the appropeiate option of the following statement:
An allotrope of carbon obtained by burning kerosene oil in a limited supply of air.
Explain the carbon cycle or biogeochemical cycle.
Which of the following is highly toxic?
Carbon monoxide enters the human body through ______.
