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Which one of the following is not a colloid?

Which one of the following is not a colloid? Correct Answer Boric acid

The correct answer is Boric acid.

  • A colloidal solution is a solution in which microscopically dispersed insoluble particles of one substance are suspended in another substance.
  • The suspended particle in a colloid can range from 1 to 1000 nanometres in its size.
  • John Tyndall, an Irish physicist, discovered the Tyndall effect. 
  • Tyndall effect: It is the effect of scattering of light in colloidal dispersion but shows no light in a true solution. The light collides with the colloidal particles and is deviated (scattered) from its normal trajectory which is a straight line.
  • This effect is primarily used to determine whether a certain mixture is a true solution or a colloid.

Key Points

Examples of Colloids:

Dispersion Medium Dispersion Phase Type of Colloids Example
Solid Solid Solid sol Ruby Glass
Solid Liquid Solid emulsion/gel Pearl, Cheese, Butter
Solid Gas Solid foam Lava
Liquid Solid Sol Paint, Mud
Liquid Liquid Emulsion Milk
Liquid Gas Foam Whipped cream
Gas Solid Aerosol Smoke
Gas Liquid Aerosol Fog, Mist

Related Questions

Consider the following statements regarding the properties of a colloid: 1. It is a heterogeneous mixture and is unstable. 2. The size of particles of a colloid is large and can be seen by naked eyes. 3. particles of a colloid are big enough to scatter a beam of light passing through it and make its path visible. 4. Fog, clouds, mist, and coloured gemstone are some of the examples of colloid. Which of the statements given above is/are correct?
Which of the following form of colloid is considered to be the strongest colloid?
Which of the following form of colloid is considered to be the lightest colloid?
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User level threads are threads that are visible to the programmer and are unknown to the kernel. The operating system kernel supports and manages kernel level threads. Three different types of models relate user and kernel level threads. Which of the following statements is/are true ? (a) (i) The Many - to - one model maps many user threads to one kernel thread (ii) The one - to - one model maps one user thread to one kernel thread (iii) The many - to - many model maps many user threads to smaller or equal kernel threads (b) (i) Many - to - one model maps many kernel threads to one user thread (ii) One - to - one model maps one kernel thread to one user thread (iii) Many - to- many model maps many kernel threads to smaller or equal user threads
Which one of the following is a natural colloid ?
Which of the following is not an ultrafine grinder (colloid mill)?
Which of the following reactions does not result in colloid formation?
Which of the following is not a colloid?
Which of the following mixtures is not a colloid?