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Differentiate calcination and roasting....

Differentiate calcination and roasting.

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ICSE-METALLURGY-ADDITIONAL QUESTIONS FOR PRACTICE
  1. Compare the properties of a typical metal and a nonmetal on the basis ...

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  2. Compare the properties of a typical metal and a nonmetal on the basis ...

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  3. Differentiate calcination and roasting.

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  4. A, B, and C are three elements which undergo chemical changes accordin...

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  5. An element reacts with oxygen to form an oxide which dissolves in dilu...

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  6. An element reacts with oxygen to form an oxide which dissolves in dilu...

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  7. Give reasons : Aluminium is more abundant than gold in the Earth's...

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  8. Give reasons : Metal sulphides occur mainly in rocks and metal hali...

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  9. Give reasons : A sulphide ore is converted to its oxide to extract ...

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  10. Explain why : In the electrolysis of molten alumina, the carbon ano...

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  11. Explain why : A layer of powdered coke is sprinkled on the surface...

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  12. Explain why : Aluminium cannot be extracted by reducing alumina wit...

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  13. Explain why : Aluminium is used for making cables for overhead elec...

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  14. Explain why : Conc. nitric acid can be stored in aluminium containe...

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  15. Explain why : Aluminium is used for making cooking vessels.

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  16. Name the steel alloy used for making the following articles. Also stat...

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  17. Name the steel alloy used for making the following articles. Also stat...

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  18. Name the steel alloy used for making the following articles. Also stat...

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  19. State two properties of brass that render it more useful for some purp...

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  20. What is an amalgam ? State its use with an example.

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