three mixtures A , B and C are obtained by stirring three different solids in water taken in water taken in separate . When a beam mixture A is allowed to stand for some time ,then its particles settle at the bottom of the beaker , when a beam of light is passed through mixture A in a dark room , the path of light becomes visible when observed from the side of the beaker . when mixture B, However ,scatters the beam of light just like mixture A the particles of mixture C Do not settle down on keeping and it also does does not scatter not scatter a beam of light passing through it .
what are the mixture like A known as ?
(b) what are the mixtures like B known as ?
( c) what are the mixtures like C known as ?
(d) name the phenomenon exhibited by A and B ,which occurs on passing a beam of light through them .
( e) name one mixture each which is like (i) A (ii) B , and (iii) C.

Answer

(a) Suspensions (b) colloids ( c) true solutions (d) tyndall effect ( e) (i) chalk - water mixture (ii) soap solution ( c) salt soltion