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प्रश्न
Classify Calcium oxide. Also give a balanced equation to prepare it.
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उत्तर
calcium oxide → Basic oxide
2Ca + O2 → 2CaO
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
Water vapours : Explain their role in modifying the earth’s climate.
Fill in the blank
The supporter of combustion in air is _____.
Name three different appliances where air is utilized.
Complete the statement given below by filling in the blank with the correct word from the words given:
The component of air which is variable in air above sea level and in air in general ______.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Photosynthesis is a process by which green plants prepare their own food in the presence of sunlight and chlorophyll.
List uses of oxygen.
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
Composition of the component of air ______ from place to place.
When cooled to -57°C, gaseous carbon-di-oxide becomes a liquid.
Carbon dioxide gas is ______.
