Which of the following pairs of liquid mixtures shows positive deviation from Raoult’s law?

Options

A. Chloroform and ethanol
B. Carbon tetrachloride and methanol
C. Acetone and carbon disulphide
D. All of these

Explanation

To determine which pairs of liquid mixtures show positive deviation from Raoult’s law, we need to analyze the intermolecular interactions between the components of each mixture.

### Step-by-Step Solution:

1. **Understanding Raoult's Law**:
Raoult's law states that the vapor pressure of a solvent in a solution is directly proportional to the mole fraction of the solvent. Ideal solutions follow this law, while non-ideal solutions can show deviations.

**Hint**: Recall that Raoult's law applies to ideal solutions where intermolecular forces are similar between the components.
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