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If standard electrode potential of A=0.74V& that of B=0.32V,then which one will displace other from its salt solution?
A replaces B explained with example: When metallic zinc is introduced into a solution of copper dichloride, the green colour of the solution slowly fades, and a red layer of copper is deposited on the zinc. The zinc has evidently displaced the copper from the solution of its chloride: CuCl2(aq) + Zn ® ZnCl2(aq) + Cu Cu+2/Cu -----> E0 is +0.159 Zn/Zn+2 -------> E0 is +0.763
A replaces B
explained with example:
When metallic zinc is introduced into a solution of copper dichloride, the green colour of the solution slowly fades, and a red layer of copper is deposited on the zinc. The zinc has evidently displaced the copper from the solution of its chloride:
CuCl2(aq) + Zn ® ZnCl2(aq) + Cu
Cu+2/Cu -----> E0 is +0.159
Zn/Zn+2 -------> E0 is +0.763
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