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प्रश्न
State four ways of preventing rusting.
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उत्तर
Rusting Can be prevented by :
- Galvanising – iron metal is coated with zinc.
- Enamelling – iron surface is baked with mixutre of silicates at high temperature.
- Coating with red lead oxide paint or tar on iron surface.
- Oils and grease coating on iron surface cuts off moist air and prevents rusting.
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संबंधित प्रश्न
The process by which oxidation of food in our body takes place is
Fill in the blank by choosing the correct word from the given list.
List: oxygen, carbonic, suIphur dioxide gas, precipitation, helium
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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.
Distinguish between:
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A process without emitting flame is called as ______.
