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प्रश्न
Write the differences between elements and compounds and give an example for each.
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उत्तर
| S.No. | Elements | Compounds |
| 1. | Contains only one kind of atom. | Contains more than one kind of atom. |
| 2. | It is a pure substance. | It is not a pure substance. |
| 3. | Elements cannot be broken down further into simpler substances by chemical methods. | Compounds can be broken down further into simpler substances by chemical methods. |
| 4. | Elements have definite physical and chemical properties. | Compounds have definite physical and chemical properties. |
| 5. | Examples of elements: oxygen O2, hydrogen H2, sodium Na. | Examples of compounds are water H2O, cane sugar C12H22O11. |
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संबंधित प्रश्न
Give four examples of non-metallic elements.
What do you understand by :
Metalloids
Define:- Filtration
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Sedimentation and decantation
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
By using a separating funnel
Fill in the blank
_______ are made up of same kind of atoms.
Give one word answer
The process of transferring the clean liquid after the solid settles at the bottom of the container
Why is filtration a better technique than sedimentation and decantation ?
When two or more elements combine together they form ______.
Write the differences between mixture and compounds.
