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.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
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.
Practise Solutions and Colloids
119 free Solutions and Colloids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Solutions and Colloids questions
When the particle size of dispersed phase in colloidal solution increases :
Mainly which colligative property is used to determine molar mass of a polymer?
The adsorption of H2 on glass takes place on H2 (g) → 2H for this adsorption:
The presence of soluble soap as a emulsifying agent generally forms the formation of emulsion of :
For the coagulation of 100 mL of As2S3 sol, 5 mL of 1 M NaCl is required. The flocculation value of NaCl is:
A substance which completely destroys or reduces the activity of the catalyst is called :