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Standard IX
Chemistry
Colloidal Solutions
Question

The size of colloidal particles ranges between:
  1. 10−7−10−9 cm
  2. 10−9−10−11 cm
  3. 10−2−10−3 cm
  4. 10−5−10−7 cm

A
10−9−10−11 cm
B
10−7−10−9 cm
C
10−5−10−7 cm
D
10−2−10−3 cm
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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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