Which of the following can be separated from a mixture by the process of centrifugation, but NOT by the process of filtration?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Colloid only.
-
Centrifugation separates particles based on density by spinning the mixture at high speed. It can separate colloidal particles, which are too small to settle naturally or be removed by filtration.
-
Filtration works only for suspensions, where particles are large enough to be trapped by a filter.
-
Solutions cannot be separated by either method, and suspensions can be separated by filtration.
Thus, centrifugation is effective for colloids, which cannot be filtered.