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Give scientific reasons: Carbonate an...

Give scientific reasons:
Carbonate and suphide ores are usualy converted into oxides during the process of extraction

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The reduction of metal oxides to metal is easier than the reduction of metal sulphides or metal carbonates. Hence, the metal sulphides or metal carbonates are converted to metal oxides in the process of extraction of metal from them.
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TARGET PUBLICATION-METALLURGY-ANSWER THE FOLLOWING
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  2. Answer the following in one or two sentences In which form do the m...

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  3. Give scientific reasons: Carbonate and suphide ores are usualy conv...

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  4. Mention the steps carried out for the extraction of zinc from its carb...

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  5. Distinguish between Calcination and roasting.

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  6. Give any four examples of moderately reactive metals.

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  7. 3MnO2 + 4Al to 3Mn + 2Al2O3 + Heat Identify the substances undergo...

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  8. Explain thermit reaction and give its uses.

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  9. Explain the steps involved in the extraction of copper from its sulphi...

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  10. Draw a concept map to show the steps to extract metals of medium and l...

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  11. State the difference between highly reactive metals and less reactive ...

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  12. Give two examples of less reactive metals

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  13. What is refining of metals?

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  14. Why do new iron sheets appear shiny?

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  15. What is galvanization? What purpose is served by it?

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  16. Write a short note on: Tinning

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  17. Write a note based on the diagram given below.

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  18. Explain the term: Electroplating

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  19. In two methods of control of corrosion of aluminium, either a layer of...

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  20. What is an alloy ? Give two examples of alloys

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