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Tabulate the changes and compounds forme...

Tabulate the changes and compounds formed when Ag, Cu, and Fe articles are exposed to air.

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ZEN PUBLICATION-METALS AND NON METALS-ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER TYPE 2 QUESTIONS)
  1. A metal X is used extensively in making aeroplane bodies as it is ligh...

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  2. During extraction of metals, electrolytic refining is used to obtain p...

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  3. Match the method of extraction with the metals.

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  4. How is impure copper purified by electrolytic refining? Draw a neat la...

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  5. Tabulate the changes and compounds formed when Ag, Cu, and Fe articles...

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  6. Define the term alloy. Write two advantages of making alloys.

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  7. A metal is slowly eaten away in the presence of air and water. To avoi...

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  8. Two elements X and Y have atomic number 3 and 5 respectively, give the...

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  9. Explain the reactions of different metals with lot water, cold water a...

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  10. State the property utilized in the following : (i) Graphite is makin...

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  11. (i) Write any two properties of ionic compound. (ii) Show the format...

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  12. P,Q and R are 3 elements which undergo chemical reactions according to...

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  13. Account for the following: (i) Electrical wire are coated with plast...

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  14. Explain the structure of mature female gametophyte with the help of a ...

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  15. State three reasons for the following facts: a. Sulphur is a non met...

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  16. Write balanced chemical equations for the following reactions : (i)...

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  17. a. Write the electronic dot structure of K and Cl. b Show the format...

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  18. Give reasons for the following: a. Ionic compounds in general have h...

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  19. Write one example of each of the following : (i) Most malleable meta...

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  20. Draw the diagram of the arrangement of apparatus to show the action of...

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