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प्रश्न
A mixture of oxygen and carbon dioxide used for artificial respiration.
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उत्तर
Carbogen
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संबंधित प्रश्न
Define the term acid rain.
What do you observe when Magnesium is heated and then tested with moist blue and red litmus – paper?
State at least two ways of prevent rusting.
State and explain two ways by which air gets polluted in nature.
Write ‘True’ or ‘False’ in front of following statement.
The rust formed on the surface of iron easily crumbles.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the method of collection of the oxygen gas giving reasons.
Distinguish between:
Combustion and Respiration
Name the following:
The pollutant which combines with water vapour to give sulphuric acid – a product of acid rain.
A process without emitting flame is called as ______.
Match the following
| 1. | Burning of meteors | a. | Exosphere |
| 2. | Weather change | b. | Stratosphere |
| 3. | Lowest temperature | c. | Mesosphere |
| 4. | Ozone layer | d. | Troposphere |
