Advertisements
Advertisements
प्रश्न
Distinguish between:
Combustion & Rusting with suitable word equations only?
उत्तर
Combustion:
- It is confined to a variety of materials.
- Oxygen is required.
- Moisture is not essential.
- Oxide of carbon and hydrogen formed.
- Heat is evolved at a rapid rate and cause sudden rise in temperature.
Rusting:
- It is confined only to iron.
- Oxygen is required
- Moisture is essential.
- Oxide of iron formed.
- Heat is evolved at a slow rate and cause slight rise in temperature.
The equation formed in Combustion is
Hydrocarbon + Oxygen → Carbon Dioxide + Water Vapour.
CxHy + O2 → CO2 + H2O
The equation formed in Rusting is Iron + Oxygen →Iron [III] oxide Rust Hydrated iron(III) oxide
\[\ce{4Fe + 3O2-> 2Fe2O3 ->[x H2O][moisture] Fe2O3.xH2O}\]
APPEARS IN
संबंधित प्रश्न
What happens when Iron burns in oxygen ? Also give the balanced chemical equation for the reaction.
Write ‘True’ or ‘False’ in front of following statement.
The rust formed on the surface of iron easily crumbles.
Tick (√ ) the most appropriate answer.
Galvanising is the process of coating iron with a layer of molten :
Describe simple experiments to show the presence of -
oxygen and nitrogen component in air using a bell jar
Describe simple experiments to show the presence of -
carbon dioxide in air using a test tube with outlets containing lime water.
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.
What is meant by burning?
In Rockets, along with fuel, oxygen is also carried for combustion – why?
A process without emitting flame is called as ______.
Match the following
| 1. | Burning of meteors | a. | Exosphere |
| 2. | Weather change | b. | Stratosphere |
| 3. | Lowest temperature | c. | Mesosphere |
| 4. | Ozone layer | d. | Troposphere |
