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Do you find any change in colour and sme...

Do you find any change in colour and smell of water in some water samples? What are your reasons?

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NCERT TELUGU-METALS AND NON-METALS-EXERCISE
  1. When do you notice a pop sound is a chemical reaction?

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  2. What could be the reason for that?

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  3. Do you find any change in colour and smell of water in some water samp...

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

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

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

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  7. Do you think coal is sonorous?

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

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

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

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

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

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  13. Name two non metals that have metallic lusture.

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  14. Most abundant element in earth crust is

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

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

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

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

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

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

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