Chemical and Ionic Equilibrium - Result Question 31

####31. The equilibrium 2CuICu0+CuII in aqueous medium at 25C shifts towards the left in the presence of

(2011)

(a) NO3

(b) Cl

(c) SCN

(d) CN

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Solution:

  1. Cl,CNand SCNforms precipitate with Cu(I), remove Cu (I) ion from equilibrium and reaction shifts in backward direction according to Le-Chatelier’s principle.


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