Advertisements
Advertisements
Question
Draw a labelled diagram of the fractional distillation apparatus used for separating a mixture of alcohol and water.
Advertisements
Solution
Figure 81. Separation of a mixture of two miscible liquids (here alcohol and water) by fractional distillation.
APPEARS IN
RELATED QUESTIONS
Select the correct alternative
The molecules can move freely anywhere in
- gases
- liquids
- solids
- none of the above
Name the processes involved in two cases.
Fill in the blank
Liquids have a definite ______
Out of solids, liquids and gases, which one has :
- maximum movement of particles ?
- maximum interparticle attractions ?
- minimum spaces between particles ?
Name a liquid which can be classified as a pure substance and conducts electricity.
What is the name of the clear liquid formed when a solid dissolves in a liquid ?
What is a colloid ? Give two examples of colloids (or colloidal solutions)
Which one of the following is not a chemical change ?
A carpenter wants to separate iron nails from saw-dust. Which method of separation should he choose ?
Describe a method to separate a mixture of common salt and sand.
How is cream separated from milk ?
With the help of a labelled diagram, describe the method of separating ammonium chloride from a mixture of ammonium chloride and common salt. Mention the difference in the properties of ammonium chloride and sodium chloride which has made this separation possible.
The liquid air has three components X, Y and Z whose boiling points are : –186°C, –183°C and –196°C,
respectively. When liquid air is fed into a tall fractional distillation column from near its bottom and warmed
up slowly :
(a) Which component will be collected from near the bottom of the fraction distillation column ? Why ?
(b) Which component will be collected from the top part of the fractional distillation column ? Why ?
(c) Which component will be collected from the middle part of the fractional distillation column ? Why ?
(d) What could the component X, Y and Z be ?
Complete the given analogy.
Murukku from hot oil: ______:: Coffee powder residue from decoction: ______
Define the term matter.
Which among the following is not a matter?
The movement of particles in liquids is ______.
The physical state of water at 373 K is ______.
Define the term matter.
Define the term matter.
