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प्रश्न
State whether the statement given below is true or false. If false write the correct statement.
Either oxygen or moisture is essential for rusting.
विकल्प
True
False
उत्तर
True.
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संबंधित प्रश्न
Name any three objects (or structures) which are gradually damaged by the corrosion of iron and steel.
Fill in the following blank with suitable word:
The corrosion of copper produces a .............. coating of basic copper carbonate on its surface
Name an alloy of copper. State its chemical composition and any one use.
What is corrosion? What are necessary conditions for corrosion?
Answer the following question.
List two properties of alloys.
Corrosion of silver causes a black layer of _______.
Write scientific reason.
Coins are made from metals and alloys.
Observe the following diagram and give answers.
- Name this method of prevention of corrosion.
- For prevention of which metal this method is used?
- What is used as anode in this method?
Copper objects lose their shine and form green coating of ____________.
Gold plated ornaments is the example of ______.
