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A Zinc Ore on Heating in Air Forms Sulphur Dioxide. Describe Briefly Any Two Stages Involved in the Conversion of this Concentrated Ore into Zinc Metal. - Science

A zinc ore on heating in air forms sulphur dioxide. Describe briefly any two stages involved in the conversion of this concentrated ore into zinc metal.

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Solution

1.Roasting: Zinc blende ore is subjected to roasting, i.e., it is heated in the presence of excess air. This converts zinc sulphide ore to zinc oxide. The reaction involved is:

2. Reduction: Zinc oxide is then reduced by coke (carbon). When zinc oxide is heated with coke, carbon acts as reducing agent and reduces zinc oxide to zinc metal.

 

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Lakhmir Singh Class 10 Chemistry (Science)
Chapter 3 Metals and Non-metals
Q 38.3 | Page 192
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