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प्रश्न
The corrosion of iron is called ______.
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उत्तर
The corrosion of iron is called rusting.
Explanation:
Rusting occurs when iron reacts with oxygen and moisture in the air to form a reddish-brown flaky coating. This coating is chemically known as hydrated iron(III) oxide. Unlike some other metals, this process continuously eats away at the iron, weakening the metal structure over time.
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संबंधित प्रश्न
What special name is given to the corrosion of iron?
The chemical reaction involved in the corrosion of iron metal is that of ______.
What is corrosion?
Explain why, the galvanised iron article is protected against rusting even if the zinc layer is broken.
Explain with reason:
Roasting is carried out on sulphide ores and not on carbonate ores.
Complete the process of iron rusting by filling the blanks. Suggest a way to prohibit the process.
The iron rust is formed due to........................... reaction. Different
regions on iron surface become anode and cathode.
Reaction on anode region :
`F_e(s) → Fe^(2+) (aq) +2e^-`
Reaction on anode region :
`O_2(g) + 4H^+(aq) +............................ → 2H_2 O (l) `
When Fe2+ ions migrate from anode region they react with ................... to form Fe3+ ions.
A reddish coloured hydrated oxide is formed from ............... ions. It is called rust.
`2Fe_(3+) (aq) + 4H_2O(l) → ................. + 6H_+(aq) `
A way to prevent rusting ..................................................................
What is done to prevent corrosion of metals?
Choose the correct alternative and rewrite the following:
Iron is _____________________.
State whether the statement given below is true or false. If false write the correct statement.
Either oxygen or moisture is essential for rusting.
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Observe the following picture and answer the following questions:
- What is rust?
- Write the chemical formula of rust.
- Write the reaction of oxidation of iron at the anode.
- Write the reaction of oxidation of iron at the cathode.
- What is corrosion?
_______ is an alloy made from iron, carbon and chromium.
_______ forms a green colour in the water.
Write the name.
An alloy of copper and tin-
Observe the following diagram and write answers.
- Name the method.
- Explain the method.
- Give two examples of this method.
The process of coating the surface of the metal with a thin layer of zinc is called ______
What is rust?
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Give scientific reasons.
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