Organc Chemistry ( Higher Paper)

What does mixture consist of?

• A mixture consists of two or more elements or compounds not chemically combined together.
• A mixture consists of two or more elements or compounds chemically combined together.
• A mixture consists of one element chemically combined together.

How can mixture be seperated?

• Filtration
• Distillation
• Chromatography

What is chromatography?

• Chromatography is a method for separating undissolved substances from one another.
• Chromatography is a method for separating dissolved substances from one another.
• Chromatography is a method for separating dissolved and undisolved substances from one another.

What is evaporation?

• Evaporation is used to separate a solid from a liquid.
• Evaporation is used to separate a solvent from a liquid.
• Evaporation is used to separate a soluble solid from a liquid.

What is filtration?

• Filtration can be used to remove solid from liquid.
• Filtration can be used to remove liquid from liquid.
• Filtration can be used to remove liquid from liquid.

What is distillation?

• Distillation is a process which uses evaporation in order to obtain a solvent from a solution.
• Distillation is a process which uses evaporation and condensation in order to obtain a solvent from a solution.
• Distillation is a process which seperates sovent from solution.

How can you test is a substance is pure?

• Melting point and boiling point data can be used to distinguish pure substances from mixtures.
• Melting point data can be used to distinguish pure substances from mixtures.
• Boiling point data can be used to distinguish pure substances from mixtures.

What is a pure substance in chemistry?

• In chemistry, a pure substance is a single element or compound, not mixed with any other substance.
• In chemistry, a pure substance is a single atom, not mixed with any other substance.
• In chemistry, a pure substance is a single element mixed with any other substance.

What is the usual state of substances that consist of small molecules?

• solid
• gases or liquids
• liquid

The melting and boiling point of substances that consist of small molecules is relatively low or relatively high?

• relatively low melting points and boiling points
• relatively high melting points and boiling points