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प्रश्न
What is rust?
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उत्तर
When iron is exposed to moist air, it forms a layer of brown hydrated ferric oxide on its surface. This compound is known as rust and the phenomenon of formation of rust is known as rusting.
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संबंधित प्रश्न
Explain how painting of an iron gate prevents it from rusting.
Fill in the following blanks with suitable words:
Tiffin boxes are electroplated with .............. but car bumpers are electroplated with ............... to protect them from rusting.
Fill in the following blanks with suitable words:
............ and .............. are necessary for the rusting of iron.
Name the metal which is a constituent of plant pigment?
Compare roasting and calcination.
Choose the correct alternative and rewrite the following:
Iron is _____________________.
Write three methods of preventing rusting of iron.
Write scientific reason.
Anodization method is useful for prevention of the corrosion of the aluminium.
State two conditions necessary for rusting of iron.
State whether the following statement is true or false:
Ships suffer a lot of damage though they are painted.
