Coordination Compounds 2 Question 70

####72. Give reasons in two or three sentences only for the following :

“The species $\left[CuCl _4\right]^{2-}$ exists, while $\left[CuI _4\right]^{2-}$ does not exist.”

(1992, 1M)

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Solution:

  1. $I^{-}$is a strong reducing agent, reduces $Cu^{2+}$ to $Cu^{+}$and precipitate out as stable CuI.

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