Advertisements
Advertisements
प्रश्न
Complete and balance the following chemical equation.
\[\ce{HgO ->[heat]}\] ______ + _______
Advertisements
उत्तर
\[\ce{2HgO ->[heat] 2Hg + O2}\]
APPEARS IN
संबंधित प्रश्न
Answer the question put against the following constituents of air :
Oxygen : What is the percentage proportion of oxygen in air ? Why is oxygen called active air.
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Dust particles help in the ________ of water vapour in air.
Briefly state the importance of Nitrogen.
Fill in the blank
Aquatic plants and animals use _________ in water.
Write ‘true’ or ‘false for the following;
The major component of air is oxygen.
What is the percentage of nitrogen in air?
Inhaled air contains a large amount of carbon-di-oxide.
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
How will you show that air is dissolved in water?
The amount of water vapour in the air is more in windy places than in other areas.
