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AP EAMCET202421 May 2024Morning ShiftChemistrySurface ChemistryActual

Which of the following is incorrectly matched?

Options

  1. AMulti molecular colloid - S ₈
  2. BMacro molecular colloid - enzyme
  3. CAs ₂ ~S ₃ sol - positively charged sol
  4. DStarch sol - lyophilic sol

Correct answer

C. As ₂ ~S ₃ sol - positively charged sol

Step-by-step solution

Sulphur sol consists of particles containing a thousand or more S ₈ sulphur molecule hence it is the multi molecular colloid. Enzymes and proteins are example of macromolecular that exist naturally. Starch forms a lyophilic solution with water when heated. As ₂ ~S ₃ is negatively charged sol it can be easily coagulated by cation having higher charge.

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