Questions given below are based on the given diagram for extractive metallurgy.
(v) This method is known as :

Options

A. Pyrometallurgy
B. Parametallurgy
C. Hydrometallurgy
D. Semimetallurgy

Answer

To determine the method referred to in the question based on the provided diagram for extractive metallurgy, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Diagram**: The question refers to a diagram related to extractive metallurgy. This diagram likely shows the relationship between Gibbs free energy (ΔG) and temperature for various reactions involving metal oxides and non-metals.

2. **Analyze the Reactions**: The diagram includes reactions of metal oxides and possibly the involvement of carbon as a reducing agent. In extractive metallurgy, carbon is commonly used to reduce metal oxides to their respective metals.

3. **Understand the Concept of Pyrometallurgy**: Pyrometallurgy is a branch of extractive metallurgy that involves the thermal treatment of minerals and ores. It typically includes processes such as roasting, smelting, and refining, where heat is applied to bring about chemical transformations.

4. **Relate to the Given Information**: The video transcript mentions that the method being discussed involves plotting ΔG° versus temperature for the conversion of metal oxides, which is characteristic of pyrometallurgical processes.

5. **Conclude the Method**: Based on the analysis, the method referred to in the question is known as **Pyrometallurgy**.

### Final Answer:
This method is known as **Pyrometallurgy**.

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