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NTA Abhyas JEE Main2020ChemistrySurface ChemistryPractice

Which of the following sols is negatively charged?

Options

  1. AFerric hydroxide
  2. BAluminium hydroxide
  3. CArsenious sulphide
  4. DSilver iodide in silver nitrate solution

Correct answer

C. Arsenious sulphide

Step-by-step solution

Ferric hydroxide = Positive sol Aluminium hydroxide = Positive sol Arsenious sulphide = Negative sol

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