Separation techniques Gunnersbury

What is the main purpose of chromatography in separating mixtures?

• To dissolve the mixture completely

• To filter out large particles

• To separate mixtures that are soluble in the same solvent

• To heat the mixture

During the process of filtration, what is the term used to describe the liquid that passes through the filter paper?

• Residue

• Solute

• Filtrate

• Solvent

What happens to a solution during evaporation?

• The solvent turns into a gas

• The solute dissolves completely

• The solute turns into a gas

• The solvent freezes

In distillation, what is the role of the condenser?

• To heat the solution

• To mix the solution

• To separate the solute from the solvent

• To cool down the vapor back into a liquid

What is a mixture?

• A pure substance with a fixed melting point

• A chemical bond between different substances

• Different substances combined but not chemically bonded

• A solution where the solute cannot be separated

What does it mean when a solution is saturated?

• No more solute can dissolve in the solvent

• The solvent has evaporated completely

• The solute is undissolved at the bottom

• The solution can dissolve more solute

What is the purpose of a reflux in a distillation setup?

• To increase the temperature of the solution

• To allow extended interaction between vapor and liquid phases

• To prevent the solution from boiling

• To separate different components immediately

How does paper chromatography separate different components in a mixture?

• By boiling the mixture

• By freezing the components

• By using a solvent to move the components at different rates

• By filtering the mixture through a paper

What is the term used to describe the solid that remains on the filter paper after filtration?

• Filtrate

• Residue

• Solvent

• Solute