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प्रश्न
What happens when Carbon burns in oxygen ? Also give the balanced chemical equation for the reaction.
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उत्तर
Carbon bums with bright sparks, forming carbon dioxide
\[\ce{C + O2 ->[heat] CO2 + heat}\]
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संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
Write fully balanced equation for the following :
Ca(OH)2 + CO2 →
The diagrams below represents an experiment to show the presence of a component of air.
- State why air is sucked from – outlet ‘B’ and not from outlet “A”
- State why the air is sucked ‘slowly’ from the outlet “B”
- State the observation seen after completion of the experiment.
- State the reason for the above observation seen.
- Name another component which if present in air as a pollutant would have given a similar observation
Name the following:
The component of air which does not support combustion.
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
What happens if the percentage of carbon-dioxide increases in the air?
Arrange the following statements in correct sequence
- Plants manufacture food by a process called photosynthesis.
- Plants require energy for their growth.
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- Such oxygen is available to animals and human beings for breathing.
- During this process, oxygen is released by plants.
Nitrogen is _______ than air.
What is not true about air?
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Mountaineers carry oxygen ______ with them, while climbing high mountains.
