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प्रश्न
Find the odd one.
brick, coir, silk cloth, pine apple
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उत्तर
Silk cloth.
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संबंधित प्रश्न
Long Answer Type Question:
‘Grouping of objects helps the shopkeeper.’ Justify the statement.
Sand paper is a good example for smooth materials.
Sugar does not dissolve in water.
Oil mixes with water.
Which among the following is an example of dull material?
Materials which have ups and downs on their surface are called ______.
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.
Pick one material from the following which is completely soluble in water.
Boojho found a bag containing the following materials
- Mirror
- Paper stained with oil
- Magnet
- Glass spectacles
Help Boojho in finding out the material(s) which is/are opaque.
Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petals of flower, soil, copper sulphate crystals, glucose, wheat flour are some substances given to Paheli. She wants to know whether these substances are soluble in water or not. Help her in identifying soluble and insoluble substances in water.
