MCQ
On adding excess of ammonium hydroxide to a copper chloride solution.
- ✓A deep blue solution is obtained
- BNo change is observed
- CBlue precipitate of copper hydroxide is obtained
- DBlack precipitate of copper oxide is obtained
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$(i)$ $Co^{3+}$ (Octahedral complex with a strong field ligand)
$(ii)$ $Co^{3+}$ (Octahedral complex with a weak field ligand like $F^-$ )
$(iii)$ $Co^{2+}$ (Tetrahedral complex)
$(iv)$ $Co^{2+}$ (Square planar complex)