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Question

# The size of colloidal particles ranges between:10−7−10−9 cm10−9−10−11 cm10−2−10−3 cm10−5−10−7 cm

A
107109 cm
B
105107 cm
C
1091011 cm
D
102103 cm
Solution
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#### A colloid is a mixture in which one of the substances is split into very minute particles which are dispersed throughout a second substance. The substance which is dispersed is called a dispersed phase whereas the one in which the first substance is distributed is called a dispersion medium.The size of colloid particles generally ranges between 1 to 1000 nanometres i.e. 10−5 to 10−7cm.10−5 - 10−7 cm

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