Question

Explain the difference amongst true solution, suspension and colloid.

Answer 1

$in \: a \: true \: solution \: there \: is \: only \\ one \: substance \\ in \: suspension \: some \: particles \: \\ remain \: suspended \: throughout \: the \\ beaker \\ in \: colloid \: the \: size \: of \: substances \\ varies \: between \: 10a - 10000a$

Answer 2

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Difference between true solutions, suspensions and colloids on the basis of some property :-

Property :- particles size

True solutions :- Less than 10^-7 cm

Colloidal solutions:- Between 10^-5 and 10^-7 cm

Suspensions:- greater than 10^-5 cm

Property :- visible of particles

True solutions :- Invisible to naked eye not visible under powerful microscope

Colloidal solutions:- visible under powerful microscope

Property:- Sedimentation of particles

True solutions:- do not settle down

Colloidal solutions :- settle down under high Centrifugation

Suspensions :- settle down due to gravity.

property :- Filtration through filter paper

True solutions:- No residue is formed

Colloidal solutions :- No residue is formed

Suspensions :- Residue is formed.