Minerals associated with redox reaction are

Options

A. Na,Cu
B. N,Cu
C. Fe,Cu
D. Ca,Fe

Explanation

**Step-by-Step Solution:**

1. **Understanding Redox Reactions:**
- A redox reaction is a chemical process in which one substance is oxidized (loses electrons) and another is reduced (gains electrons) simultaneously. This means that during the reaction, there is a transfer of electrons between substances.

2. **Identifying Minerals Associated with Redox Reactions:**
- In the context of plants, certain minerals play crucial roles in these redox reactions. The two key minerals associated with redox reactions are **iron (Fe)** and **copper (Cu)**.

3. **Role of Iron in Redox Reactions:**
- Iron is a micronutrient that is absorbed by plants primarily in the form of ferric ions (Fe³⁺).
- In the electron transport system, iron is involved in the conversion between its ferrous (Fe²⁺) and ferric (Fe³⁺) states, which is essential for various biochemical processes, including the functioning of ferredoxin.

4. **Role of Copper in Redox Reactions:**
- Copper is also a micronutrient and is absorbed in the form of cupric ions (Cu²⁺).
- Similar to iron, copper participates in redox reactions by being reversibly oxidized and reduced, which is important for various enzymatic functions in plants.

5. **Conclusion:**
- Therefore, the minerals associated with redox reactions in plants are **iron (Fe)** and **copper (Cu)**, as they undergo reversible oxidation and reduction, facilitating essential biochemical processes.