Arsenious sulphide sol is an example of -

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RRB JE CBT I - (Held On: 1 June 2019 Shift 3)
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  1. Colloids 
  2. Suspension
  3. Solution
  4. Solids

Answer (Detailed Solution Below)

Option 1 : Colloids 
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Detailed Solution

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The correct answer is Colloids

Key Points

  • Arsenious sulphide sol is an example of a colloid.
  • Colloids are mixtures where one substance is dispersed evenly throughout another.
  • In a colloid, the dispersed particles are larger than those in a solution but smaller than those in a suspension.
  • Colloids can be found in various forms such as sols, gels, and emulsions.
  • Examples of colloids include milk, fog, and gels.

Additional Information

  • The term "colloid" was introduced in 1861 by Scottish scientist Thomas Graham.
  • Colloids play a crucial role in various industries, including food, pharmaceuticals, and cosmetics.
  • The stability of a colloid depends on the interaction between the dispersed particles and the dispersion medium.
  • Colloidal particles can be separated by techniques such as centrifugation and ultrafiltration.
  • Colloids are important in both natural processes and industrial applications.

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