Advertisements
Advertisements
Question
When a crystal of potassium permanganate is placed at the bottom of water in a beaker, the water in the whole beaker turns purple on its own, even without stirring. This is an example of :
Options
distribution
intrusion
diffusion
effusion
Advertisements
Solution
Diffusion
APPEARS IN
RELATED QUESTIONS
Gases have definite volume but no definite shape.
Fill in the blank :
The state of matter with definite volume and definite shape is called______
Explain why steel is used to make railway lines.
What are the characteristics of matter?
During respiration, glucose and oxygen enter our body cells and waste products carbon dioxide and water leave the body cells by the process of :
What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?
Explain why, hydrogen and oxygen are considered elements whereas water is not considered an element.
Name a non-metal :
- which is lustrous
- which is required for combustion
- whose one of the allotrophic forms is a good conductor of electricity. Name the allotrope.
- other than carbon which shows allotropy
- which is known to form the largest number of compounds
Calculate the concentration of a solution which contains 2.5 g of salt dissolved in 50 g of water.
Which of the following is not an emulsion ?
Fill in the following blanks with suitable words :
If a mixture contains iron filings as one of the constituents, it can be separated by using a .......................
How would you separate iodine from a mixture of iodine and common salt ?
How will you separate camphor, common salt and iron nails from their mixture ?
Asmita went to buy an earthen pot. There she saw many things kept for sale.
How did she identify what she needed?
Solids possess very high kinetic energy.
Liquids have ______.
Solid is an arrangement of particles ______.
Compressibility of solids: ______.
Define the term matter.
