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प्रश्न
What happens when Iron burns in oxygen ? Also give the balanced chemical equation for the reaction.
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उत्तर
Red hot iron bums with a bright sark, forming an oxide of iron.
3Fe + 2O2 → Fe3O4 + heat
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संबंधित प्रश्न
State at least two ways of prevent rusting.
State two differences between:
Rusting and burning.
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
____________ gas can cause acid rain.
State and explain two ways by which air gets polluted in nature.
Write ‘True’ or ‘False’ in front of following statement.
The rust formed on the surface of iron easily crumbles.
State four ways of preventing rusting.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the method of collection of the oxygen gas giving reasons.
Distinguish between:
Combustion and Respiration
Give the main experimental points only to demonstrate that candle-gains weight on burning.
