Q7 / 155 · WBJEE 2016 · Chemistry

Point out the false statement.

  • Correct answer
    A
    Colloidal sols are homogeneous
  • B
    Colloids carry + ve or - ve charges
  • C
    Colloids show Tyndall effect
  • D
    The size range of colloidal particles is $10-1000 \mathrm{A}$

Solution

Option (a) is false as colloidal sols are not homogeneous. Colloidal sols are heterogeneous mixture of dispersed phase and dispersion medium.

Hence, the correct answer is option: 'A'.

More Surface Chemistry Questions