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JEE Advanced 2019 Paper 2

Section: Chemistry

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Question : 20

Total: 54

The cyanide process of gold extraction involves leaching out gold from its ore with CNin 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)

[JEE Adv 2019 P2]

Q is O2
T is Zn
Z is [Zn(CN)4]2−
R is [Au(CN4)]−

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