Advertisements
Advertisements
प्रश्न
What is rusting?
Advertisements
उत्तर
The slow conversion of iron into its hydrated ferric oxide, in the presence of moisture and air is called rusting.
Fe2O3 + xH2O → Fe2O3.xH2O
Ferric oxide Water Hydrated ferric oxide
(rust)
APPEARS IN
संबंधित प्रश्न
State two differences between:
Rusting and burning.
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.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
To prevent rusting, the underside of the ships is coated with __________________.
State two most important conditions for rusting.
State four ways of preventing rusting.
Write the balanced chemical equation of the manganese dioxide.
Oxygen of the air is utilised for ‘combustiop’ and for ‘respiration’. Compare the two with a suitable examples.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Name the catalyst used in the preparation and state it’s function.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the method of collection of the oxygen gas giving reasons.
Give reason for the following:
Acid rain has caused damage to heritage structures such as the Taj Mahal.
