Here's why:
* Cyclohexanol is not fully soluble in water. This means that the two liquids don't mix perfectly to form a single, homogeneous solution.
* Cyclohexanol has a lower density than water. This means that cyclohexanol will tend to float on top of water.
* Light scattering. When light passes through the mixture, it is scattered by the tiny droplets of cyclohexanol suspended in the water, causing the cloudy appearance.
You can think of it like mixing oil and water - they don't mix fully and create a cloudy appearance.
