Question

Separation of solids from solid is called as:

• A. Filtration
• B. Sedimentation
• C. Centrifugation
• D. Sieving

Hint:

Sieving is effective for separating particles of different sizes. It's commonly used in industries like construction and food processing to filter solids based on size.

Answer 1

The Correct Option is D

The process of separating solids from solids is typically achieved by methods that exploit the difference in particle sizes. Among the given options, sieving is the process where solids of different sizes are separated using a mesh or screen. This technique is widely used in various industries to separate fine particles from coarse ones.
- Filtration is used to separate solids from liquids or gases, not from other solids. It relies on a filter medium to trap solid particles while allowing liquids or gases to pass through.
- Sedimentation involves the settling of particles from a liquid or gas under the influence of gravity, not separation between two solid phases.
- Centrifugation uses high-speed rotation to separate substances based on their densities, usually liquids or a mixture of solids and liquids, but not to separate solid particles from another solid.
Thus, the correct method for separating solids from solids is Sieving, making option (4) the correct answer.