`CuSO_(4)` solution + lime is called:

Options

A. Luca's reagent
B. Befoed's reagent
C. Fehling solution A
D. Bordeaux mixture

Answer

To solve the question "CuSO4 solution + lime is called:", we can follow these steps:

### Step 1: Identify the Components
- We have two components: CuSO4 (Copper(II) sulfate) and lime (which is calcium hydroxide, Ca(OH)2).

### Step 2: Understand the Reaction
- When CuSO4 is mixed with lime (Ca(OH)2), a reaction occurs that forms a mixture known as Bordet's mixture.

### Step 3: Analyze the Options
- The question provides four options: Lucas reagent, Bephors reagent, Felling solution A, and Bordet's mixture.
- We need to determine which of these names corresponds to the mixture of CuSO4 and lime.

### Step 4: Recall the Definitions
- **Lucas Reagent**: A reagent used to test for alcohols, not related to CuSO4 and lime.
- **Bephors Reagent**: Used for monosaccharides, not related to CuSO4 and lime.
- **Felling Solution A**: A reagent that contains CuSO4 but is not specifically the mixture with lime.
- **Bordet's Mixture**: Specifically refers to the mixture of CuSO4 and lime (Ca(OH)2).

### Step 5: Conclusion
- Therefore, the correct answer is Bordet's mixture.

### Final Answer
CuSO4 solution + lime is called Bordet's mixture.

---