STANDARD Chemistry Stability of Complexes MCQ Question with Solution

Which of the following ions does not exist?

A

[CuI₄]²⁻

B

VO₄³⁻

C

WO₄²⁻

D

CrO₄²⁻

Option A

[CuI₄]²⁻ does not exist because I⁻ being a stronger reducing agent reduces Cu²⁺ to Cu⁺.

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