The transition metals which do not form amalgams are

Options

A. Zn
B. Fe
C. Cd
D. Pt

Answer

To solve the question regarding which transition metals do not form amalgams, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Amalgam**:
- An amalgam is an alloy of mercury (Hg) with another metal. It is important to know that not all metals can form amalgams with mercury.

2. **Identify Transition Metals**:
- The question provides four options: Zinc (Zn), Iron (Fe), Cadmium (Cd), and Platinum (Pt). We need to analyze each of these metals to determine if they can form amalgams with mercury.

3. **Analyze Each Option**:
- **Zinc (Zn)**: Zinc can form an amalgam with mercury. Therefore, it does not meet the criteria of the question.
- **Iron (Fe)**: Iron does not form an amalgam with mercury. This is a candidate for our answer.
- **Cadmium (Cd)**: Cadmium can also form an amalgam with mercury. Thus, it does not meet the criteria.
- **Platinum (Pt)**: Platinum does not form an amalgam with mercury. This is another candidate for our answer.

4. **Conclusion**:
- Based on the analysis, the transition metals that do not form amalgams are Iron (Fe) and Platinum (Pt). Therefore, the correct options are Fe and Pt.

### Final Answer:
The transition metals which do not form amalgams are Iron (Fe) and Platinum (Pt).

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