Which of the following undergoes sublimation?

What method can be used for the separation of two volatile liquids that have a significant difference in their boiling points?

Name the method used for the separation of a mixture of iodine and sodium chloride.

What is the process of converting a solid directly into a gaseous state called?

Draw a diagram showing the setup of the apparatus for the process. Draw a diagram of a bubble plate type fractionating column. When do we require such a type of column for separating two liquids? Explain the principle involved in the separation of components of a mixture of liquids by using a fractionating column. What industrial applications does this process have?

Two liquids $(A)$ and $(B)$ can be separated by the method of fractional distillation. The boiling point of liquid $(A)$ is less than the boiling point of liquid $(B)$. Which of the liquids do you expect to come out first in the distillate? Explain.