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A metal 'M' is found in nature as its ca...

A metal 'M' is found in nature as its carbonate. It is used in the galvanization of iron. Identify 'M' and name its ore. How will you convert this ore into free metal ?

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Zinc
Ore of zinc is Zinc blende (ZnS).
Sulphide ore is heated below its melting point in the presence of air to convert it into metal oxide. It is called Roasting.
`2ZnS(s) + 3O_(2)(s) overset("Roasting")rarr 2ZnO(s)+2SO_(2)(g)`
Reduction of oxide ore : It is the process of conversion of metal oxide ore into metal. It can be done by heating the oxides.
`ZnO(s) + C(s) rarr Zn(s) + CO(g)`
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OSWAAL PUBLICATION-METALS AND NON-METALS-TOPIC - 2 Short Answer Type Questions - I
  1. What are ionic compounds ? List two properties of these compounds.

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  2. Draw the diagram of an electrolytic cell used in the purification of c...

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  3. Why do ionic compounds have high melting points ? State reason.

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  4. Define amphoteric oxides. Give two examples of such oxides.

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  5. Explain the steps for extraction of copper from its sulphide ore. Writ...

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  6. Define ionic compounds. Ionic compounds conduct electricity only in th...

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  7. Differentiate roasting and calcination process giving one example of e...

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  8. Write symbols of cation and anion present in MgO. Why do ionic compoun...

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  9. Name a metal/non-metal : (i) Which makes iron hard and strong ? (i...

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  10. A metal 'M' is found in nature as its carbonate. It is used in the gal...

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  11. Name one metal each which is extracted by : (i) Reduction with carbo...

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  12. Describe briefly the method to obtain mercury from Cinnabar. Write the...

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  13. An aluminium can is used to store ferrous sulphate solution. It is obs...

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  14. Write chemical equations that show aluminium oxide reacts with acid as...

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  15. What are the constituents of solder alloy ? Which property of solder m...

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  16. Corrosion is a serious problem. Every year an enormous amount of money...

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  17. A metallic ore 'X' reacts with dilute HCl to liberate a gas which turn...

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