Chapter 2-Is Matter Around Us Pure?(Mixtures and Solutions)

Fill in

The ________ is unable to remove the solute particles from the mixture.

filtration procedure

________ are mixtures of two or more metals or a metal and a non- metal that are impossible to physically separate into their component parts.

Alloys

________ are big enough to scatter a beam of light passing through it and make its path visible.

Colloids

A ________ is a solution which has extremely small particle size less than 1 nm (10- 9 metres)

homogenous mixture

________ is a basic form of matter that can not be broken down into simpler substances by chemical reactions.

Element

________ is a process that separates a pure solid in the form of its crystals from a solution.

Crystallisation

sodium chloride

However, ________ can not be physically divided into its chemical components because it is a pure material in and of itself.

filtration method

The ________ is not appropriate for such particles.

The effect that can be observed in colloidial solution is ________.

Tyndall effect

components of a colloidal solution

The ________ are the dispersed phase and the dispersion medium.

________ is used for the separation of components of a mixture containing two miscible liquids that boil without decomposition and have sufficient difference in their boiling points.

Distillation

Dilute

________ and concentrated are comparative terms.

A(n) ________ is a gaseous, liquid or solid mixture that has the same proportions of its components throughout a given sample.

homogeneous mixture

________ are mixtures in which minute insoluble particles of one substance are suspended in another substance.

Colloids

Solvent

·A liquid material with the ability to dissolve or disperse one or more other substances

They are poor heat

and electricity-conductors

Sublimation is camphour is a ______ change

physical

Most common chemical change we observe in our routine life is rusting of______.

Iron

A solution is defined as a mixture that is __________

Homogeneous

A pure substance has a fixed__________ or ______ at constant temperature.

M. P & B. P.

Common salt is _________.

compound

Filtered tea is a _________ mixture.

homogeneous