Advertisements
Advertisements
Question
Fill in the following blanks with suitable words :
The separation of liquids by fractional distillation is based on the difference in their .....................
Advertisements
Solution
The separation of liquids by fractional distillation is based on the difference in their boiling points.
APPEARS IN
RELATED QUESTIONS
Name the terms for the change of a solid into liquid.
Name the scientist who studied the movement of pollen grains suspended in water through a microscope. What is this phenomenon known as?
What is Brownian motion? Draw a diagram to show the movement of a particle (like a pollen grain during Brownian motion.
Name a liquid which can be classified as a pure substance and conducts electricity.
What elements do the following compounds contain ?
Sugar, Common salt
You are given two liquids, one a solution and the other a compound. How will you distinguish the solution from the compound ?
Which of the following statements are true for pure substances ?
- pure substances contain only one kind of particles
- pure substances may be compounds or mixtures
- pure substances have the same composition throughout
- pure substances can be exemplified by all elements other than nickel
Which of the following does not have a fixed melting point/boiling point ?
State whether the following statement is true or false :
Sponge is an example of solid sol.
How will you differentiate between a suspension and a colloid ?
Define Sol and give one example.
9.72 g of potassium chloride dissolves in 30 g of water at 70°C. Calculate the solubility of potassium chloride at that temperature.
What is meant by a solution?
How will you separate iron pins from sand ?
Write a few lines on the blackboard with a chalk. Now observe the chalk. What changes do you see in the chalk?
All the matter made of ______.
______ is so hard that it can scratch glass.
Examples of foam are ______.
Define the term matter.
Define the term matter.
