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Observing appearance and colour of some ...

Observing appearance and colour of some materials:
Generally metals are lustrous.Do all lustrous materials are metals?

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NCERT TELUGU-METALS AND NON-METALS-EXERCISE
  1. Do you find any change in colour and smell of water in some water samp...

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  2. Which of the samples did not shine even after you cleaned them with sa...

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  3. Observing appearance and colour of some materials: Generally metals ar...

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  4. Observing appearance and colour of some materials: We all know that mi...

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  5. Do you think coal is sonorous?

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  6. What similarity do you notice among materials which produce sound ?

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  7. Identifying malleability of material: What is the property of drawing ...

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  8. Write an experiment to know the reaction of oxygen with metals and non...

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  9. List out the uses of the non-metal sulphur in daily life.

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  10. foil used in inner packing of food materials and toffees.

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  11. Name two non metals that have metallic lusture.

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  12. Most abundant element in earth crust is

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  13. How do the water (aqueous) solutions of Magnesium oxide and calcium ox...

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  14. What are the six important elements with which human body is made up o...

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  15. Why does the colour of copper sulphate solution change when an iron na...

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  16. Do all the materials get rusted or react with oxygen in the air?

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  17. Why are pressure cookers provided with wooden or plastic handles ?

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  18. What happen when non metallic oxides are dissolved in water ?

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  19. You might have seen an electrician while using the screwdriver. What m...

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  20. You might have seen an electrician while using the screwdriver. Why do...

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