The cyanide process of gold extraction involves leaching out gold from its ore with CN –…
Chemistry · JEE Advanced · NTA Exams — General Principles and Processes of Isolation of Elements
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) (2019)
- R is [Au(CN)4]–
- T is Zn
- Q is O2
- Z is [Zn(CN)4]2–
Answer
(B) T is Zn, (C) Q is O 2, (D) Z is [Zn(CN) 4 ] 2–
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