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प्रश्न
Select the correct answer from the choice given below.
The element which is malleable
विकल्प
sulphur
carbon
iron
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उत्तर
iron
संबंधित प्रश्न
Tick the most appropriate answer
Solutions are
- heterogeneous mixtures.
- compounds
- homogeneous mixtures.
- elements
Give two examples of Metalloids.
Answer the following question:
Why are copper and aluminium used to make electric wires?
Tick (√) the correct alternative from the choice given for the following statement.
Atoms of different kinds combine to form molecules of
Complete the statement with the correct words.
Acid’s are chemicals which are _____ in taste and derived from plants and ________.
Represent with the help of a simple chart how matter is classified into pure or impure substances & further into elements, compounds & mixtures, with elements further segmented.
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
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 |
Elements contain the ______of the same kind.
