JEE Advanced Model Paper 10 with solutions for online practice

Question : 23 of 54

Marks: +1, -0

When NH3 (g) is passed to solution of Zn2+ (aq) , the formation of complex [Zn(NH3)4]+2 occurs . Calculate theequilibrium constant for the formation of complex from Zn2+ (aq.) at 25°C
Given Zn2+ (aq) + 2e− ⇌ Zn (s) E1° = - 0.76 V
[Zn(NH3)4]2+ + 2e− ⇌ Zn (s) + 4 NH3 (g) E°2=−1.03V