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प्रश्न
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Name the catalyst used in the preparation and state it’s function.
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उत्तर
Catalyst used in preparation of oxygen is manganese dioxide. It increased the speed of decomposition of H202.
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संबंधित प्रश्न
State two differences between:
Rusting and burning.
What happens when Sodium burns in oxygen ? Also give the balanced chemical equation for the reaction.
What is rusting?
Write the balanced chemical equation of the manganese dioxide.
Describe simple experiments to show the presence of -
oxygen and nitrogen component in air using a bell jar
Describe simple experiments to show the presence of -
water vapour in air using a glass tumbler and ice.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the word equation for the reaction involving the above preparation of oxygen.
Give reason for the following:
Combustion and respiration show similarity.
Name the following:
The gas required for both combustion and rusting.
What is meant by burning?
