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  3. Chemistry
  4. Which of the following ion does not exist?

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Q. Which of the following ion does not exist?

AIIMSAIIMS 2013The d-and f-Block Elements

Solution:

$\left[ CuI _{4}\right]^{2-}$ does not exist because I- being a stronger reducing agent reduces $Cu ^{2+}$ to $Cu ^{+}$

$2 CuI _{2} \longrightarrow 2 CuI + I _{2}$