Advertisements
Advertisements
Question
Give a reason for the following statement :
Centrifugation can be used for separating an insoluble heavier solid, present in an – insoluble solid-liquid mixture.
Advertisements
Solution
Centrifugation is a fast method to separate suspended (heavier) insoluble solid from a lighter liquid by rotating the mixture fast. Heavier solid settles down at the bottom.
APPEARS IN
RELATED QUESTIONS
Fill in the blank
................. is used when the constituents of a mixture of solids have difference in their weights
Why is filtration a better technique than sedimentation and decantation ?
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method.
Water and alcohol
Match the ideal method of separation of components in a mixture in List I with the appropriate process in List II.
| List I | List II |
| 1. Sand from a mixture of sand and water | A: Separating funnel |
| 2. kerosene from a mixture of kerosene water | B: Sublimation |
| 3. Alcohol from a mixture of methyl alcohol and water | C: Filtration |
| 4. Naphthalene from a mixture of naphthalene and lead chloride | D: Distillation |
| 5. Pure water from impure water | E: Fractional distillation |
Name the following:
The compound containing one atom of sulphur and two atoms of oxygen.
Select the correct answer from the choice given below to complete the sentence :
A soluble solid is separated from an insoluble solid by ____________.
Very Short Answer Type Question:
What types of material can we separate by using handpicking?
Visit a nearby paddy field and rice mill and note down the different separating techniques used there. Is technology replacing some traditional practices?
Boojho’s grandmother is suffering from diabetes. Her doctor advised her to take ‘Lassi’ with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it?
Name the two phases in the separation of the mixtures in chromatography.
