Engineering
Chemistry
Compounds of d Block Elements
Question

The equilibrium

 2 CuI ⇌ Cu0 + CuII

in aqueous medium at 25°C shifts towards the left in the presence of :

CN¯

Cl¯

NO3¯

SCN¯

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Solution

Cu2Cl2, Cu2(CN)2 and Cu2 (SCN)2 are stable