Physical properties of ice,water and steam are very different. What is the chemical composition of water in all the three states?

$A$ mixture of camphor and benzoic acid can be separated by:

$A$ mixture of $ZnCl_2$ and $PbCl_2$ can be separated by

Which of the following substances undergoes sublimation?

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?

One sample of atmospheric air is found to have $0.03\%$ of carbon dioxide and another sample $0.04\%$. This is evidence that