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A, B, and C are three elements which und...

A, B, and C are three elements which undergo chemical changes according to the following equations: `(a) A_2 O_3 + 2B to B_2 O_3 + 2A`(b) 3CSO_4 + 2B to B_2(SO_4)_3 + 3C '(c) '3CO + 2A to A_2 O_3 + 3C Name the most reactive and the least reactive element.

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ICSE-METALLURGY-ADDITIONAL QUESTIONS FOR PRACTICE
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  2. Differentiate calcination and roasting.

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

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

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

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

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

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

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

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

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

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

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

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  20. Name an alloy of :

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