A.Formation of soluble complex by dilute solution of✓ Correct
B.Formation of soluble complex by dilute solution of
C.Roasting followed by the self reduction
D.Roasting followed by electrolytic reduction
Explanation
O₂ oxidases silver to silver (l) ion which then produces soluble complex with CN– ions. 2 2 2 2 2 4 1 2 4 2 2 2 2 → Ag NaCN O H O Na Ag CN NaOH Na Ag CN Zn Na Zn CN Ag