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Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsReduction to free Metal
Easy

Gold is extracted by the formation of a soluble cyanide complex. What is the formula of this cyanide complex?

  • A
    $[Au(CN)_4]^-$
  • B
    $[Au(CN)_2]^-$
  • C
    $[Au(CN)_3]^-$
  • D
    $[Au(CN)]^-$
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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Reduction to free Metal

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