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प्रश्न
Explain the characteristics of compounds
Write any five characteristics of compounds.
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उत्तर
- A compound is formed only when the constituent elements combine in a fixed proportion.
- The properties of a compound are different from those of its constituent elements
- A compound cannot be broken down by physical methods.
- This is because a compound is made up of different elements that are chemically combined. Sodium chloride cannot be separated by physical methods such as filtration.
- A compound can be separated into its constituent elements by chemical methods only.
संबंधित प्रश्न
Name the elements present in Ammonia
What is the proportion of element present in the following compound?
CO2
State the information obtained from the formula of a compound.
Give the example of a compound containing nitrogen and oxygen.
Give the example of a compound containing calcium and oxygen.
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to existence
Sodium chloride is used as table salt and for flavoring and preserving food.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is known to form the largest number of compounds.
Complete the table
| Compound | Constituent elements |
| Sodium carbonate | Sodium, Carbon. Oxygen |
| Water | |
| Calcium oxide | |
| Sugar | Carbon, Hydrogen, Oxygen |
Name the compounds used in fertilizers.
