Question

write the difference between sol, solution and suspension on the basis of 1) stability 2) transparency 3) filtration 4)homogenate 5) size of particles

Answer 1

Property/Features		True solution	Colloidal solution	Suspension
1	Nature	Homogeneous	Heterogeneous	Heterogeneous
2	Particle	< 10-9 m	10-9 – 10-8 m	10-7 -10-5 m
3	Appearance	Transparent	Generally transparent, but may show translucence	Hazy to opaque
4	Brownian Movement	Not observed	Possible and observed	may be possible only with very fine suspensions
5	Light scattering (Tyndall effect)	Do not scatter light	Scatter light, Tyndall effect is observed	Tyndall effect may be observed
6	Separation of solute ordinary filtration ultrafiltration	Not possible Not possible	Not possible Possible	Possible Possible
7	Setting of particles under gravity or stability	No setting	No setting. Setting becomes only under high speed Centrifugation	Particles settle down: heavier particles settle down faster than the finer particles.