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प्रश्न
What is rusting?
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उत्तर
The slow conversion of iron into its hydrated ferric oxide, in the presence of moisture and air is called rusting.
Fe2O3 + xH2O → Fe2O3.xH2O
Ferric oxide Water Hydrated ferric oxide
(rust)
APPEARS IN
संबंधित प्रश्न
State at least two ways of prevent rusting.
Fill in the blanks :
Oxides of sulphur and nitrogen combine with rain water to form ___________ and _________ which cause ____________.
What happens when Iron 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.
Describe simple experiments to show the presence of -
oxygen and nitrogen component in air using a bell jar
Identify the acidic oxides responsible for acid rain. State how their presence results in formation of acid rain. Give a reason why acid rain damages heritage buildings.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Name the catalyst used in the preparation and state it’s function.
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 the main experimental points only to demonstrate that candle-gains weight on burning.
Name the following:
The gas required for both combustion and rusting.
