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Give two examples of ore of aluminium?...

Give two examples of ore of aluminium?

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Bauxite `(Al_(2)O_(3),H_(2)O)` and Cryolite `(Na_(3)AlF_(6))`.
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CPC CAMBRIDGE PUBLICATION-METALS AND NON-METALS-ADDITIONAL QUESTIONS ( Answer the following)
  1. State three reasons for the following facts: a. Sulphur is a non met...

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  2. What is cinnbar ? How is a metal extracted from cinnabar ? Explain bri...

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  3. Give two examples of ore of aluminium?

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  4. Why do potato - chips manufactures fill the packest of chips with nitr...

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  5. What is gangue and what is concentration?

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  6. a. Write electron dot diagram for chlorine (At No. 17) and Calcium (At...

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

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

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

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

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

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

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

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

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

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  16. Write any four physical properties of metals.

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  17. Give examples of the least reactive metals.

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

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

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

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