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प्रश्न
Name the following:
The active component of air which supports combustion and is used up in burning
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उत्तर
Oxygen
संबंधित प्रश्न
Tick (√) the most appropriate answer.
Symbiotic bacteria is not present in the nodules of :
Tick (√ ) the most appropriate answer.
Magnesium burns with a dazzling white flame to form magnesium oxide, a powdery mass. The colour of magnesium oxide is :
Write fully balanced equation for the following :
Ca(OH)2 + CO2 →
State the utility of oxygen for respiration in living organisms
State the utility of oxygen for respiration in plants
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The percentage of carbon dioxide in the air is between 0.2 to 0.4%.
What is the presence of harmful substance in the air called?
Air contains a small amount of CO2, Water vapour, and some other gases like ______, etc.
Metals like magnesium, iron, and sodium burn in oxygen and give basic ______.
The components of air which are harmful to living beings are ______.
