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प्रश्न
What is rust ?
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उत्तर १
Rust: Rust is hydrated ferric oxide (Fe2O3 . x* H2O), which forms a brownish red coating over iron. (* x can be any number.)
उत्तर २
The hydrated oxide of iron formed when iron comes in contact with moist air is called rust. This rust is brownish flaky residue and easily crumbles from the metal surface.
4Fe + 3O2 → 2Fe2O3
Iron Oxygen Ferric oxide
संबंधित प्रश्न
State two differences between:
Rusting and burning.
The process by which oxidation of food in our body takes place is
What happens when potassium nitrate is heated ?
What happens when Iron burns in oxygen ? Also give the balanced chemical equation for the reaction.
Write fully balanced equation for the following :
MgO + H2O →
What is rusting?
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.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the method of collection of the oxygen gas giving reasons.
Distinguish between:
Combustion and Respiration
