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प्रश्न
Name: the Hardest Naturally Occurring Substance
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उत्तर
Diamond
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संबंधित प्रश्न
What are the different types of mixtures ?
Name: a Non-metal Which is a Good Conductor of Electricity.
Give reason: Graphite is used to make a lead of the pencils.
Fill in the blank
A diatomic gaseous element is _______.
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
Select the correct answer from the choice given below.
An element which is a poor conductor of heat
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
Atoms: Fundamental particle of an element::______ : Fundamental particles of a compound.
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 |
