Find the incorrect statement:
Correct answer: C. Ag & Pt are positively charged in their colloidal sols.
- A. As2S3 , Au in their colloidal sols are negatively charged
- B. Fe(OH)3 , Al(OH)3 are positively charged in their colloidal sols.
- C. Ag & Pt are positively charged in their colloidal sols.
- D. smoke is dispersion of positively charged colloidal particles of carbon in air
Explanation
Ag & Pt are negatively charged. They move towards anode in electrophoresis.
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About Solutions and Colloids
Solutions are described using molarity, molality, normality, mole fraction, percentage concentration and parts per million. Coverage also includes vapour-pressure lowering, boiling-point elevation, freezing-point depression and osmotic pressure, then distinguishes true solutions, colloids and suspensions by particle size, stability, light scattering and settling.
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