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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
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उत्तर
True.
APPEARS IN
संबंधित प्रश्न
Name the metal which is used for galvanising iron.
______ and ______ are necessary for the rusting of iron.
Name a common metal which is highly resistant to corrosion.
A metal X which is resistant to corrosion is produced by the electrolysis of its molten oxide whereas another metal Y which is also resistant to corrosion is produced by the reduction of its oxide with carbon. Metal X can be used in powder form in thermite welding whereas metal Y is used in making cathodes of ordinary dry cells.
- Name the metals X and Y.
- Which of the two metals is more reactive: X or Y?
- Name one ore or metal X. Also write its chemical formula.
- Name one ore of metal Y. Also write its chemical formula.
- Name one alloy of metal X and one alloy of metal Y.
Name the metal which is a constituent of plant pigment?
Write three methods of preventing rusting of iron.
Answer the following question.
List two properties of alloys.
Find the odd one out and give its explanation.
Draw a neat labelled diagram.
Anodizing
Explain the following:
Lime water turns milky on passing carbon dioxide gas into it.
