MCQ
Which of the following is an example of anionic complex?
- A$\left[ Ag \left( NH _3\right)_2\right] Cl$
- B$\left[ CO \left( NH _3\right)_6\right] Cl _3$
- C$\left[ Fe ( CO )_5\right]$
- ✓$K _4\left[ Fe ( CN )_6\right]$
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