AIIMS2002ChemistrySurface Chemistry
The size of colloidal particle is
Options
- A10⁻³ to 10⁻⁹ ~m
- B10⁻⁹ to 10⁻¹² ~m
- C10⁻⁶ to 10⁻⁹ ~m
- D10⁻¹² to 10⁻¹⁹ ~m .
Correct answer
C. 10⁻⁶ to 10⁻⁹ ~m
Step-by-step solution
A system is said to be in colloidal state if particles of one or more components have the same size range 10⁻⁶ ~m to 10⁻⁹ ~m . In other words, the colloidal solution is a heterogenous dispersion of solute particles size ranging from 10⁻⁶ ~m into the solvent. Particles are visible only with an ultra microscope.