In the rxn:
4Au (s) + 8CN- (aq) + O2(g) + H2O(l) --> 4Au(CN)2- (aq) + 4OH-(aq)
What is the role of CN- in the first rxn in the purification of gold?
a) the cyanide serves as a reducing agent
b) the cyanide serves as an oxidizing agent
c) the cyanide serves as a Lewis acid
d) the cyanide serves as a Lewis base
can someone tell me why cyanide cant be a reducing agent?
answer is D)
plus whats the difference between lewis base and reducing agent? dont they both donate lone pairs?
4Au (s) + 8CN- (aq) + O2(g) + H2O(l) --> 4Au(CN)2- (aq) + 4OH-(aq)
What is the role of CN- in the first rxn in the purification of gold?
a) the cyanide serves as a reducing agent
b) the cyanide serves as an oxidizing agent
c) the cyanide serves as a Lewis acid
d) the cyanide serves as a Lewis base
can someone tell me why cyanide cant be a reducing agent?
answer is D)
plus whats the difference between lewis base and reducing agent? dont they both donate lone pairs?
