Solutions which strictly obey ______ law are called _____ solutions.

Explanation

To solve the question "Solutions which strictly obey ______ law are called _____ solutions," we need to identify the law and the type of solution that corresponds to it.

### Step-by-Step Solution:

1. **Identify the Law**: The question asks for a specific law that solutions obey. In the context of solutions in chemistry, the most relevant law is **Raoult's Law**.

2. **Define Raoult's Law**: Raoult's Law states that the vapor pressure of each volatile component in a solution is directly proportional to its mole fraction in the solution. This means that as the concentration of a component increases, its vapor pressure also increases proportionally.

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