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Science

Suspensions

In Class 9 Science, students study suspensions as heterogeneous mixtures formed when relatively large, insoluble solid particles are dispersed in a liquid. They learn to identify their visible particles, observe how the particles settle on standing, and understand why suspensions are unstable and can often be separated by methods such as filtration or decantation. Examples like muddy water help students compare suspensions with true solutions and colloids while exploring the separation of mixtures.

Easy · Level 1 · 4 questions

TOPIC PRACTICE

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4 questions

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  1. Sand does not dissolve uniformly in water
  2. Water is not a liquid
  3. Sand is a gas
  4. It is always colourless
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  1. Solution is homogeneous, particles may be visible in suspension
  2. Solution is always solid
  3. Suspension is always homogeneous
  4. Solution has no solvent
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  1. Because sand does not dissolve and spread uniformly in water
  2. Because water cannot be a solvent
  3. Because sand is always liquid
  4. Because every solid dissolves in water
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  1. Because particles remain uniformly distributed in a solution
  2. Because a solution never contains solid
  3. Because a solution is always gas
  4. Because a solution has no solvent

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