Solutions having the same osmotic pressure are called:

Options

A. isotonic solution
B. molar solutions
C. hypotonic solutions
D. ideal solutions

Explanation

To solve the question "Solutions having the same osmotic pressure are called:", we can follow these steps:

### Step 1: Understand the Terms
First, we need to understand the definitions of the terms provided in the options:
- **Isotonic Solution**: Solutions that have the same osmotic pressure.
- **Hypotonic Solution**: Solutions that have a lower osmotic pressure compared to another solution.
- **Hypertonic Solution**: Solutions that have a higher osmotic pressure compared to another solution.
- **Ideal Solution**: A solution that follows Raoult's law perfectly, often used in theoretical contexts.

### Step 2: Analyze the Options
Now, we can analyze the options given in the question:
- **Option A: Isotonic Solution** - This matches the definition of having the same osmotic pressure.
- **Option B: Molar Solutions** - This refers to a concentration unit and does not relate to osmotic pressure.
- **Option C: Hypotonic Solutions** - This refers to solutions with lower osmotic pressure.
- **Option D: Ideal Solutions** - This refers to a theoretical concept and does not specifically relate to osmotic pressure.

### Step 3: Select the Correct Answer
Based on the definitions and analysis:
- The correct answer is **Option A: Isotonic Solution**.

### Final Answer
Solutions having the same osmotic pressure are called **Isotonic Solutions**.

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