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Take two beakers and prepare lead nitrat...

Take two beakers and prepare lead nitrate aqueous solution and potassium iodide aqueous solutions. What are the colours of the solutions? Now mix them in another beaker. What happens? What type of chemical reaction it is? What are products?

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  • ATOMS AND MOLECULES

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VGS PUBLICATION-BRILLIANT-ATOMS ,MOLECULES AND CHEMICAL REACTIONS-EXERCISE
  1. Is O2 an element or compound? Why

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  2. ''Freshly cut apple turning brown, the iron articles shiny when new, b...

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  3. Take two beakers and prepare lead nitrate aqueous solution and potassi...

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  4. Latha take some quantity of powder of a substance in a test tube. Heat...

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  5. A light-yellow colour substance (some quantity) on a watch glass light...

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  6. What is the unit of atomic mass?

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  7. On the basis of molecular weights of NaOH and H2O, which is heavier?

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  8. Collect the symbols of various elements.

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  9. Give examples to different net charged ions ?

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  10. Prepare formulae for compounds by using Criss- Cross methods.

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  11. Make a chart showing the concept of mole.

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  12. Draw the diagram of arrangement of appartmentus in the activity of he...

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  13. Draw the diagram of “ Electrolysis of water”.

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  14. Draw the diagram of reduction of copper oxide to copper and label it.

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  15. Write any two compounds that are used in your house.

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  16. Molecular mass of H2SO4 is

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  17. The formula unit mass of sodium chloride is-

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  18. How can you prevent the spoiling of food?

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  19. How can you identify the corrosion of metals?

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  20. Where do you observe oxidation process in your daily life ?

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