MCQ
In a complex, the highest possible coordination number is
- A$6$
- B$12$
- C$4$
- ✓$8$
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(Molal depression constant for water is $1.80\, K\, kg\,mol ^{-1}$ and molar mass of $KCl$ is $74.6 \,g\, mol ^{-1}$ )

The compound $B$ is