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प्रश्न
Which of the following is true about oxygen?
पर्याय
Completely burning gas
Partially burning gas
Doesn’t support burning
Supports burning
उत्तर
Supports burning
APPEARS IN
संबंधित प्रश्न
Classify Carbon monoxide. Also give a balanced equation to prepare it.
State a reason why there is a balance in the amount of carbon dioxide in the air, even though carbon dioxide is released into the atmopshere by various processes.
What is the composition of air?
______ present in the air is needed for respiration.
______ gas cylinders are used for breathing purpose for a diver going deep into the sea.
Air contains a small amount of CO2, Water vapour, and some other gases like ______, etc.
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
Match the following:
| 1. | More industrial cities | a. | dust particles |
| 2. | Coastal areas | b. | Humidity |
| 3. | Rainy season | c. | Carbon dioxide |
| 4. | Windy places | d. | water vapour |
When cooled to -57°C, gaseous carbon-di-oxide becomes a liquid.
Observe the picture given in Fig. carefully and answer the following questions.
What is covering the nose and mouth of the police man?
