Explanation:
Separating a mixture with a relative volatility value of 2 is not possible using azeotropic distillation. Azeotropic distillation is a process commonly used to separate mixtures that form azeotropes, which are compositions that boil at a constant temperature. In azeotropic distillation, a third component is added to the mixture to break the azeotrope and facilitate separation.

Relative Volatility:
- Relative volatility is a measure of the differences in vapor pressures of the components in a mixture.
- A relative volatility value of 2 indicates that one component has a vapor pressure twice that of the other component.

Azeotropic Distillation:
- Azeotropic distillation is effective for separating mixtures with components that form azeotropes.
- The addition of a third component helps to alter the vapor-liquid equilibrium and break the azeotrope, allowing for separation.

Limitations of Azeotropic Distillation:
- Azeotropic distillation may not be successful for mixtures with components that have significantly different relative volatilities.
- In the case of a relative volatility value of 2, the differences in vapor pressures are not large enough to easily separate the components using azeotropic distillation.
Therefore, in the given scenario with a relative volatility value of 2, it is not possible to separate the mixture using azeotropic distillation. Other separation techniques such as fractional distillation or extractive distillation may be more suitable for such mixtures.