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प्रश्न
Write the differences between elements and compounds and give an example for each.
उत्तर
| S.No. | Elements | Compounds |
| 1. | Contains only one kind of atoms. | Contains more than one kind of atoms. |
| 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 for elements: oxygen 07, hydrogen H7, sodium Na. | Examples for compounds, water H70, cane sugar Cp |
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संबंधित प्रश्न
Name the main metal present in the following:
Chalk
Name the main metal present in the following:
Chlorophyll
Give four examples of non-metallic elements.
Fill in the blank
_______ are made up of same kind of atoms.
Fill in the blank:
________ and _______ are pure substances.
Fill in the blank:
_________ is a process to obtain a very pure form of a solid dissolved in a liquid.
Fill in the blank
Use of a __________ to separate the components of a mixture of solids is based on the difference in the size of the components.
Write true or false
All pure substances have characteristic melting and boiling points.
What is centrifugation ? Also write the principle on which it works.
Differentiate between the terms elements, compounds, and mixtures with suitable examples.
