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प्रश्न
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Draw a neat labelled diagram for the method used in the above preparation.
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उत्तर
Preparation of oxygen from - H2O2
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संबंधित प्रश्न
A mixture of oxygen and carbon dioxide used for artificial respiration.
Write ‘True’ or ‘False’ in front of following statement.
Nitrogen is a gaseous non-metal essential for respiration.
State and explain two ways by which air gets polluted in nature.
What happens when Sodium burns in oxygen ? Also give the balanced chemical equation for the reaction.
Write ‘True’ or ‘False’ in front of following statement.
The rust formed on the surface of iron easily crumbles.
State four ways of preventing rusting.
Describe simple experiments to show the presence of -
oxygen and nitrogen component in air using a bell jar
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Name the catalyst used in the preparation and state it’s function.
Give the main experimental points only to demonstrate that candle-gains weight on burning.
What is meant by burning?
