Impure silver ore + CN ⁻+ H ₂ O O ₂ [ X ]⁻+ OH ⁻[ X ]⁻+ Zn [ Y ]²⁻+ Ag (pure) The co-ordination numbers of the metals in [ X ] . ( Y ] are respectively

Step-by-step solution

aligned & 4 M ( S )+8 CN ⁻( aq )+2 H ₂ O ( ag )+ O ₂( ~g ) & 4 [ M ( CN )₂ ]⁻( aq )+4 O H [ M = Ag or Au ] & 2 [ M ( CN )₂ ]⁻( aq )+ Zn ( s ) [ Zn ( CN )₄ ]²⁻( aq )+2 M ( s ) & CN no. of Ag =2 & CN no. of Zn =4 aligned