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give reason for the following: Carbona...

give reason for the following:
Carbonate and sulphide ores are usually converted into oxides during the process of extraction of metals.

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It is easier to obtain a metal from its oxide, as compared to its sulphides and carbonates. Therefore, prior to reduction, the metal sulphides and carbonates are converted into metal oxides.
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Explore conceptually related problems

Give reasons (a) Platinum, gold and silver are used to make jewellery. (b) Sodium, potassium and lithium are stored under oil. (c) Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. (d) Carbonate and sulphide ores are usually converted into oxides during the process of extraction.

Sulphide ores are converted into oxides by

(i) Carbonate and sulphide ores are usually converted into oxides during the process of extraction of metals. (ii) Ionic compounds have generally high melting points. (iii) Hydrogen is not a metal but is has been assigned a place in the reactivity series of metals. (iv) The galvanised iron article is protected against rusting even if the zinc layer is broken.

Sulphide ore is converted to oxide form by using the process

A sulphide ore is converted into metal oxide by the process of:

How is mercury extracted from its sulphide ore? Write the balanced chemical equations involved in the process. Why are carbonate or sulphide ores converted to oxides during the process of extraction? Is magnesium oxide an ionic compound or a covalent compound? Give reasons to support your answer.

Calamine ore can be converted into zinc oxide by the process of:

S CHAND IIT JEE FOUNDATION-METALS AND NON METALS-QUESTION BANK-15
  1. Give reason: Sodium, potassium and lithium are stored under oil

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  2. Give reason: Aluminium is a highly reactive metal, yet it is used to...

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  3. give reason for the following: Carbonate and sulphide ores are usual...

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  4. Give reason: Metals are regarded as electropositive elements

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  5. Give reason: Carbon is not used for making aluminium from aluminium ...

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  6. Give reason: Metals conduct electricity

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  7. Metallic oxides of zinc, magnesium and copper were heated with the fol...

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  8. A student has been collecting silver coins and copper coins. One day s...

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  9. A metal 'M' has the electronic configuration is 2, 8, 3 - and occurs i...

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  10. Rusting of iron involves

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  11. Which of the following metals can displace hydro-gen from dilute acids...

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  12. The ore of which of the following metals can be concentrated by hydrau...

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  13. Which of the following alloys is used for making magnets?

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  14. Match the following:

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  15. Which of the following metals was first discovered by man?

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  16. When an iron nail gets rusted, iron oxide is formed

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  17. Of the following metals which one pollutes the air of a big city?

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  18. Which of the following is an incorrect statement?

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  19. Which of the following is not a correct statement?

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  20. Rust is

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