Which of these techniques would be most suitable for separating an insoluble solid from a liquid?

The correct answer is Filtration.

 Key Points

• Filtration is a physical, mechanical, or biological operation that separates solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass.
• The filter medium can be a single piece of paper, a bed of loose particles, or an array of porous material.
• It is commonly used in laboratories to separate an insoluble solid from a liquid.

 Additional Information

• Chromatography is a method for separating the components of a mixture by differential adsorption between a stationary phase and a mobile phase.
• Distillation is a process used to separate components of a mixture using differences in their boiling points.
• Titration is a process in analytical chemistry meant to determine the concentration of an unknown solution (analyte) by adding a known volume and concentration of a solution (titrant).