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प्रश्न
Name the following:
The component of air which does not support combustion.
उत्तर
Nitrogen
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.
Complete and balance the following equation
CaO + H2O →
Write ‘True’ or ‘False’ in front of following statement.
The catalyst used in laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide
Write fully balanced equation for the following :
Ca(OH)2 + CO2 →
Give reason:
When water is heated, we see bubbles rising up.
What is the source of oxygen gas in air?
When cooled to -57°C, gaseous carbon-di-oxide becomes a liquid.
Oxygen is used to oxidize ______.
Write the reaction of carbon dioxide with lime water.
Explain the following observations very briefly
An empty glass in fact is not empty.
