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Question

Tin is extracted from its ore, cassiterite, by :

A
Electrolytic reduction
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B
Carbon-monoxide reduction
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C
Carbon reduction
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D
The aluminothermic process
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Solution

The correct option is A Carbon reduction
Chemical reduction of tin dioxide with carbon monoxide reduces tin in SnO2 to the metal via two stages:
SnO2+CSn+CO2

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