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प्रश्न
Match the objects that are made of the same material.
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उत्तर
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संबंधित प्रश्न
Very Short Answer Type Question:
Select a lustrous material out of the following substances.
Short Answer Type Question:
What are the similarities between iron, copper, and aluminium?
Short Answer Type Question:
What is the reason for grouping materials?
Long Answer Type Question:
‘Grouping of objects helps the shopkeeper.’ Justify the statement.
A notebook has lustre while an eraser does not.
Soft materials can be early compressed.
Smooth materials do not have ups and downs.
Which among the following is an example of dull material?
Match the substances in Column A with their applications given in Column B.
|
Column A |
Column B |
| (a) oxygen | (i) for making crackers |
| (b) copper | (ii) for disinfecting water |
| (c) sulphur | (iii) all living beings inhale during breathing |
| (d) iron | (iv) for making electric wires |
| (e) chlorine | (v) for making rails |
Complete the crossword given in the figure with the help of the clues.
Across
1. Which is generally hard, ductile, malleable and sonorous.
2. A metal is called so it can be drawn into wires.
3. Metal bells are used because of this property.
Down
4. A metal generally used for making jewellery.
5. A metal which is liquid at room temperature.
6. A metal which reacts with acid as well as base to form hydrogen gas.
7. Substances used to enhance the growth of plants.
8. Property by virtue of which metals can be beaten into thin sheets.
