Advertisements
Advertisements
प्रश्न
Name the following:
The main, rare (inert) gas present in air.
Advertisements
उत्तर
Argon
संबंधित प्रश्न
What are the causes of air pollution?
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
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 :
Fill in the blank
Aquatic plants and animals use _________ in water.
Name the following:
The product formed when phosphorus burns in oxygen.
State four different properties of a compound and a mixture.
Compare respiration and combustion-both involving oxygen of the air.
What happens if the percentage of carbon-dioxide increases in the air?
Write a note on nitrogen.
A ______ gas that is used to remove carbon impurities from the steel.
