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(i) Explain the formation of ionic compo...

(i) Explain the formation of ionic compound CaO with electron dot structure. Atomic number of calcium and oxygen are 20 and 8 respectively.
(ii) Name the constituent metals of bronze.

Text Solution

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`Ca to Ca^(2+)+2e^(-)`
`2,8,8,2," "2,8,8 `
`O+2e^(-)toO^(2-)`
`2.6" "2.8`
`(Ca^(2+))
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CPC CAMBRIDGE PUBLICATION-METALS AND NON-METALS-ADDITIONAL QUESTIONS ( Answer the following)
  1. a. Write electron dot diagram for chlorine (At No. 17) and Calcium (At...

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  2. Identify the nature of above compound and explain three physical prope...

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  3. Give reasons for the following : (i) School bells are made up of met...

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  4. Give reasons for the following : (i) School bells are made up of met...

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  5. What asre amphoteric oxides? Choose the amphoteric oxide from among th...

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  6. Differentiate between roasting and calcination. Explain the two with...

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  7. Name two metals than can be used to reduce metal oxides of metals.

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  8. State reasons for the following: Electric wires are covered with rub...

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  9. Which of the following metals cannot liberate hydrogen from dilute ...

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  10. State reasons for the following: Sulphide ore of a metal is first co...

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  11. Write any four physical properties of metals.

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  12. Give examples of the least reactive metals.

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  13. Sodium and chlorine are poisonous substances but sodium chloride is ed...

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  14. Write balanced equations for the reactions of : (i) Aluminium when h...

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  15. Write balanced chemical equation for the reaction of: a. Al when hea...

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  16. Write balanced equations for the reactions of : (i) Aluminium when h...

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  17. (i) Explain the formation of ionic compound CaO with electron dot stru...

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  18. Name the constitutent metals of bronze.

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  19. a. Give two methods to prevent the rusting of iron b. Name the ores ...

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  20. You are provided with magnesium ribbon and sulphur powder. Explain wit...

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