Which of the following is not a part of green chemistry?

Options

A. Photochemistry
B. Sonochemistry
C. Nuclear chemistry
D. Biochemistry

Answer

To determine which of the following options is not a part of green chemistry, we will analyze each option in relation to the principles of green chemistry.

**Step 1: Understand Green Chemistry**
Green chemistry is a field of chemistry focused on designing chemical products and processes that reduce or eliminate the use and generation of hazardous substances. It emphasizes sustainability and minimizing environmental impact.

**Step 2: Analyze the Options**
1. **Photochemistry**: This branch of chemistry deals with the chemical effects of light. It is involved in processes such as photosynthesis and can be used to develop cleaner chemical processes. Thus, photochemistry is a part of green chemistry.

2. **Sonochemistry**: This area focuses on the effects of ultrasound on chemical reactions. It can enhance the efficiency of chemical processes and reduce energy consumption, making it a part of green chemistry as well.

3. **Nuclear Chemistry**: This branch studies the chemical and physical properties of elements as influenced by changes in the structure of the nucleus. It often involves radioactive materials and does not focus on reducing hazardous substances. Therefore, nuclear chemistry is not considered a part of green chemistry.

4. **Biochemistry**: This field studies the chemical processes within and related to living organisms. It often leads to the development of sustainable processes and products, thus aligning with the principles of green chemistry.

**Step 3: Conclusion**
Based on the analysis, the option that is not a part of green chemistry is **Nuclear Chemistry**.

**Final Answer**: Nuclear Chemistry (Option C) is not a part of green chemistry.

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