STATEMENT-1: Quenched steel is very hard and brittle. and STATEMENT-2: During quenching, steel is heated to a temperature well below red hot.

Options

A. STATEMENT - 1 is True, STATEMENT-2 is True, STATEMENT -2 is correct explanation for STATEMENT-1
B. STATEMENT - 1 is True, STATEMENT-2 is True, STATEMENT -2 is NOT a correct explanation for STATEMENT-1
C. STATEMENT - 1 is True, STATEMENT-2 is False
D. STATEMENT - 1 is False, STATEMENT-2 is True

Answer

To analyze the statements provided in the question, we will break down each statement and evaluate their accuracy based on the principles of metallurgy, specifically concerning steel and the quenching process.

### Step-by-Step Solution:

1. **Understanding Steel:**
- Steel is an alloy primarily composed of iron and carbon. The properties of steel can be altered by varying the amount of carbon and other alloying elements.

**Hint:** Remember that steel is an alloy, and its properties depend on its composition.

2. **Understanding Quenching:**
- Quenching is a heat treatment process where steel is heated to a high temperature and then rapidly cooled, usually in water or oil. This process is used to increase the hardness of the steel.

**Hint:** Quenching involves heating and then rapid cooling, which affects the mechanical properties of the metal.

3. **Analyzing Statement 1:**
- **Statement 1:** "Quenched steel is very hard and brittle."
- This statement is true. The quenching process increases the hardness of steel, but it also makes it more brittle due to the formation of martensite, a hard but brittle microstructure.

**Hint:** Consider the relationship between hardness and brittleness in quenched steel.

4. **Analyzing Statement 2:**
- **Statement 2:** "During quenching, steel is heated to a temperature well below red hot."
- This statement is false. During the quenching process, steel is typically heated to a temperature above its recrystallization temperature (which is usually above red hot) but below its melting point. The term "red hot" generally refers to temperatures around 700-800°C, which is not sufficient for effective quenching.

**Hint:** Recall the temperature ranges for effective quenching and the significance of recrystallization temperature.

5. **Conclusion:**
- Since Statement 1 is true and Statement 2 is false, we conclude that the correct answer is that Statement 1 is correct, while Statement 2 is incorrect.

### Final Answer:
- The correct option is **C**: Statement 1 is true, and Statement 2 is false.