Question:

The size of colloidal particle is

Updated On: Jun 23, 2023
  • $10^{-3}$ to $10^{-9} \,m$
  • $10^{-9}$ to $10^{-12}\, m$
  • $10^{-6}$ to $10^{-9} m$
  • $10^{-12}$ to $10^{-19} m$
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The Correct Option is C

Solution and Explanation

A system is said to be in colloidal state if particles of one or more components have the same size range $10^{-6}\, m$ to $10^{-9}\, m$. In other words, the colloidal solution is a heterogenous dispersion of solute particles size ranging from $10^{-6}\, m$ into the solvent. Particles are visible only with an ultra microscope.
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Concepts Used:

Solutions

A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm.

For example, salt and sugar is a good illustration of a solution. A solution can be categorized into several components.

Types of Solutions:

The solutions can be classified into three types:

  • Solid Solutions - In these solutions, the solvent is in a Solid-state.
  • Liquid Solutions- In these solutions, the solvent is in a Liquid state.
  • Gaseous Solutions - In these solutions, the solvent is in a Gaseous state.

On the basis of the amount of solute dissolved in a solvent, solutions are divided into the following types:

  1. Unsaturated Solution- A solution in which more solute can be dissolved without raising the temperature of the solution is known as an unsaturated solution.
  2. Saturated Solution- A solution in which no solute can be dissolved after reaching a certain amount of temperature is known as an unsaturated saturated solution.
  3. Supersaturated Solution- A solution that contains more solute than the maximum amount at a certain temperature is known as a supersaturated solution.