Advertisements
Advertisements
प्रश्न
Name the following:
The active component of air which supports combustion and is used up in burning
Advertisements
उत्तर
Oxygen
संबंधित प्रश्न
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
Fill in the blank
Green plants need ________________to prepare food.
Write ‘true’ or ‘false for the following;
Carbon dioxide is given out during photosynthesis
Write ‘true’ or ‘false for the following;
The composition of air was discovered by Lavoisier.
Nitrogen is used in the food packaging industry because it _____.
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
______ gas is essential for the proper growth of all plants.
The solid form of CO2 is called dry ice which undergoes condensation.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
