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Question

The cyanide process of gold extraction involves leaching out gold from its ore with CN− in the presence of Q in water to form R. Subsequently, R is treated with T to obtain Au and Z. Choose the correct option(s).

A
Z is [Zn(CN)4]2
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B
T is Zn
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C
R is [Au(CN)4]
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D
Q is O2
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