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प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
The rust formed on the surface of iron easily crumbles.
पर्याय
True
False
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उत्तर
True.
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संबंधित प्रश्न
Fill in the blanks :
Oxides of sulphur and nitrogen combine with rain water to form ___________ and _________ which cause ____________.
The process by which oxidation of food in our body takes place is
State two most important conditions for rusting.
State four ways of preventing rusting.
Describe simple experiments to show the presence of -
carbon dioxide in air using a test tube with outlets containing lime water.
Describe simple experiments to show the presence of -
water vapour in air using a glass tumbler and ice.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Draw a neat labelled diagram for the method used in the above preparation.
Name the following:
The pollutant which combines with water vapour to give sulphuric acid – a product of acid rain.
Name the following:
The gas required for both combustion and rusting.
What is meant by burning?
