Is their any reaction other then cyanide reaction which can be used for the differentiation of `Cu^(2+)` and `Cd^(2+)` ions ?

Explanation

To differentiate between Cu²⁺ and Cd²⁺ ions, we can use their reactions with ammonia (NH₃). Here’s a step-by-step solution:

### Step 1: Understand the ions
- We are dealing with two metal ions: Copper (Cu²⁺) and Cadmium (Cd²⁺).

### Step 2: Reaction with Ammonia
- When Cu²⁺ ions react with ammonia, they form a complex ion:
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