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An element M forms an oxide M2O3. Which ...

An element M forms an oxide `M_2O_3`. Which is acidic in nature. State whether the element M is a metal or a non-metal.

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MODERN PUBLICATION-METALS AND NON-METALS-EXERCISE
  1. What type of oxides are formed when non-metals combine with oxygen?

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  2. Which of the following elements would give acidic oxide? K,P,Na or H

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  3. An element M forms an oxide M2O3. Which is acidic in nature. State whe...

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  4. Which reducing agent is used for the reduction of alumina?

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  5. Which process is used for the enrichment of suphide ore.explain in bri...

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  6. What chemical process is used for obtaining a metal from its oxide?

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  7. What chemical process is used for obtaining a metal from its oxide?

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  8. The most abundant element in the earth's crust is:

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  9. Fill ups The minerals from which metals are produced economically are ...

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  10. Fill ups The process involvd in the production of a metal from the ore...

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  11. For the reduction of a metallic oxide, suggest a reducing agent cheape...

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  12. Which of the following ores are concentrated by froth floation ?

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  13. Give the name of one metal each occuring as: carbonate.

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  14. Give the name of one metal each occuring as: oxide?

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  15. Give the name of one metal each occuring as: sulphide?

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  16. Give the name of one metal each occuring as: halide.

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  17. Name two metals which are found in nature the free state.

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  18. The rockey material found with ores is known as…………….

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  19. Conversion of sulphide ore into an oxide by heating in excess of air i...

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  20. Froth floatation process is used for the concentration of ……………..ores.

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