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Latha take some quantity of powder of a ...

Latha take some quantity of powder of a substance in a test tube. Heated it with spirit lamp. A gas was liberated. She sends the gas into another test tube. The colour of solution in the second test tube turned into milk white. Which substance was heated? Which gas is liberated? What was the solution taken in second test tube? Which type of chemical reactions involved the experiment?

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VGS PUBLICATION-BRILLIANT-ATOMS ,MOLECULES AND CHEMICAL REACTIONS-EXERCISE
  1. ''Freshly cut apple turning brown, the iron articles shiny when new, b...

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

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

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

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  5. What is the unit of atomic mass?

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

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  7. Collect the symbols of various elements.

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  8. Give examples to different net charged ions ?

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

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  10. Make a chart showing the concept of mole.

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

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

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

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

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  15. Molecular mass of H2SO4 is

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  16. The formula unit mass of sodium chloride is-

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  17. How can you prevent the spoiling of food?

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  18. How can you identify the corrosion of metals?

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

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  20. What do you do to prevent rusting of copper and silver articles ?

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