Advertisements
Advertisements
Question
Fill in the following blanks with suitable words :
A mixture of kerosene and petrol can be separated by .....................
Advertisements
Solution
A mixture of kerosene and petrol can be separated by fractional distillation.
APPEARS IN
RELATED QUESTIONS
The smallest unit of matter that exists freely in nature is called ...........
Name the terms for the change of a solid into liquid.
Classify the following into elements, compounds and mixtures:
- Sodium
- Soil
- Sugar solution
- Silver
- Calcium carbonate
- Tin
- Silicon
- Coal
- Air
- Soap
- Methane
- Carbon dioxide
- Blood
What are the conditions for 'something' to be called 'matter'?
Name the scientist who studied the movement of pollen grains suspended in water through a microscope. What is this phenomenon known as?
What is meant by saying that metals are lustrous ?
Fill in the following blanks with suitable words :
An element is made up of only one kind of ........
Calculate the concentration of a solution which contains 2.5 g of salt dissolved in 50 g of water.
If 25 mL of acetone is present in 150 mL of its aqueous solution, calculate the concentration of solution.
What is meant by a solution?
What type of magnet is fitted on a crane to separate scrap iron objects from a heap of waste materials in factories ?
How will you separate a mixture containing sand and sugar ?
Which of the following cannot be separated from air by the process of fractional distillation ?
The given mixture contains three constituents A, B and C. The constituent A is a yellow coloured, solid element which dissolves in a liquid D. The constituent B is a blue coloured salt which is insoluble in liquid D but dissolves easily in another liquid E. The constitudent C is a liquid which is used in cooking food and forms a solid fat on hydrogenation.
(a) What do you think could (i) constituent A, and (ii) liquid D be ?
(b) What could (i) constituent B, and (ii) liquid E be ?
(c) What could liquid C be ?
(d) How will you separate the mixture containing A, B and C ?
Explain the meaning of the term matter with special reference to the term ‘substance’.
Explain the meaning of the term ‘matter’.
A standard sheet of paper is about ______ of atoms thick
The movement of particles in liquids is ______.
Define the term matter.
