In the process of extraction of gold. Roasted gold ore + `CN^(-) + H_2O overset (O_2) (->) [X] + OH^-` `[X] +Zn ->

Ask a Question


Question Asked by a Student from EXXAMM.com Team


Q 2509323218.     In the process of extraction of gold.

Roasted gold ore + `CN^(-) + H_2O overset (O_2) (->) [X] + OH^-`

`[X] +Zn -> [Y] +Au`

Identify the complexes [X] and [Y] :
JEE 2003 Prelims
A

`X= [Au(CN)_2], Y = [Zn(CN)_4]^(2-)`

B

`X= [Au(CN)_4]^(3-), Y= [Zn(CN)_4]^(2-)`

C

`X = [Au(CN)_2]^(-), Y = [Zn(CN)_6]^(4-)`

D

`X= [Au(CN)_4]^(-), Y = [Zn(CN)_4]^(2-)`

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

Find instant solution to any question from our database of 1.5 Lakh + Questions

 


Access free resources including

  • 100% free video lectures with detailed notes and examples
  • Previous Year Papers
  • Mock Tests
  • Practices question categorized in topics and 4 levels with detailed solutions
  • Syllabus & Pattern Analysis

Engineering


Medical


Banking


DEFENCE


SSC


RRB


CBSE-NCERT


OLYMPIAD