Advertisements
Advertisements
प्रश्न
State and explain two ways by which air gets polluted in nature.
Advertisements
उत्तर
Air gets polluted in nature by following ways :
- During forest fire, a large amount of carbon particles (smoke) and carbon-monoxide pollute the air.
- When volcanoes erupt, a huge amount of ash and sulphur-dioxide is added in the air as pollutants.
APPEARS IN
संबंधित प्रश्न
A metal highly resistant to rusting.
What is rust ?
State two differences between:
Rusting and burning.
What happens when Sodium burns in oxygen ? Also give the balanced chemical equation for the reaction.
Write fully balanced equation for the following :
MgO + H2O →
State four ways of preventing rusting.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the word equation for the reaction involving the above preparation of oxygen.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the method of collection of the oxygen gas giving reasons.
In Rockets, along with fuel, oxygen is also carried for combustion – why?
A process without emitting flame is called as ______.
