Advertisements
Advertisements
Question
A mixture contains water, kerosene and sand. How will you separate this mixture ?
Advertisements
Solution
We will separate a mixture of kerosene oil, water and sand by the following process:
- First, we can separate sand from mixture by passing it through a filter paper or by decantation.
- After that, we get a mixture of kerosene and water. Leave it undisturbed for some time. Kerosene, being less dense than water, starts floating on it. By using a separating funnel, we can separate the mixture of kerosene and water.
- Another process is by distillation. Water has a low boiling point (100°c), which allows it to evaporate easily. But kerosene having a boiling point of 175°C will remain undisturbed. Care should be taken as kerosene is inflammable.
APPEARS IN
RELATED QUESTIONS
Fill in the blank
Mixtures can be ________ or _______
State the main points of difference between homogeneous and heterogeneous mixtures.
The ‘sea water’ can be classified as a homogeneous mixture as well as a heterogeneous mixture ? Comment.
Name the solvent you would use to separate a mixture of sulphur and carbon.
Which method can be used to separate a mixture of naphthalene and common salt ?
Select the correct answer from the choice in the bracket.
A homogenous mixture.
Complete the given analogy.
Iron – sulphur mixture : ______:: Mustard seeds from Urad-dhal: Rolling
What would you observe when
an aqueous sugar solution is heated to dryness.
You are given two samples of water labelled as ‘A’ and ‘B’. Sample ‘A’ boils at 100°C and sample ‘B’ boils at 102°C. Which sample of the water will not freeze at 0°C? Comment.
A colloid is a ______ mixture and its components can be separated by the technique known as ______.
