Question

Explain the importance of complex compounds in qualitative analysis with a suitable example.

Hint:

Complex formation in qualitative analysis enhances selective detection of metal ions through distinct color changes.

Answer 1

Step 1: Complex compounds are used in qualitative analysis due to their selective reactivity with metal ions. Step 2: Example - Ammonia Complexation with Copper: \[ Cu^{2+} + 4NH_3 \rightarrow [Cu(NH_3)_4]^{2+} \] This forms a deep blue solution, aiding in the detection of \( Cu^{2+} \) ions.