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Name the formulate themain ore from whic...

Name the formulate themain ore from which zinc is extracted.

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`ZnS`, Zince blende or sphalerite.
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(a) Name the method by which aluminium metal is extracted. (b) Give the name and chemical formula of one ore of copper. (c). How is zinc extracted from its carbonate ore (calamine) ? Explain with equations.

Name the sulphide ores of (i) zinc (ii) lead.

(A) All minerals are ores (R ) Ores are minerals from which metal can be extracted convenitly and economically

Assertion: All minerals are ore. Reason: Ores are minerals from which metal can be extracted conveniently and economically.

(a) Name two metals which are found in free state in nature. (b) What chemical process is used for extracting a metal from its oxide ore? Name one metal which is extracted by this method. (c) Describe the extraction of zinc metal from its sulphide ore as well as its carbonate ore. Write equations of all the reactions involved.

(a) Which metal is extracted from bauxite ore? (b) Give the name of one ore of iron. Which iron compound is preent in this ore? Write its chemical formula. (c). Describe the extraction of zinc metal from its sulphide ore (zinc blende). Write equations of the reactions involved. (d) Explain why, the galvanised iron article is protected against rusting even if the zinc layer is broken. (e) name a common metal which is highly resistant to corrosion.

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