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प्रश्न
Name: an Inert Gas
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उत्तर
Neon, helium
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संबंधित प्रश्न
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
What is the difference between a pure substance and a mixture ?
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Marble
Name: a Metal Which is a Poor Conductor of Electricity.
Give two examples of the following.
Non-metals which are solids
Define: Formula
Complete the statement with the correct words.
Acid’s are chemicals which are _____ in taste and derived from plants and ________.
Match the following.
| 1. | Element | Made up of molecules |
| 2. | Compound | Impure substance |
| 3. | Colloid | Settles down on standing |
| 4. | Suspension | Pure substance |
| 5. | Mixture | Made up of atoms |
Oxygen is very essential for us to live. It forms 21% of air by volume. Is it an element or compound?
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 other than carbon that shows allotropy.
