Advertisements
Advertisements
प्रश्न
What will happen if a saturated solution is :
- heated
- cooled
Advertisements
उत्तर
If a saturated solution is heated to a higher temperature, then it becomes unsaturated. If a saturated solution is cooled to a lower temperature, then some of its dissolved solute will separate out in the form of solid crystals.
APPEARS IN
संबंधित प्रश्न
Which one is a kind of matter:
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 :
What elements do the following compounds contain ?
Sugar, Common salt
What are pure substances ? Give two examples of pure substances.
Which of the following are ‘pure substances’ ?
Ice, Milk, Iron, Hydrochloric acid, Calcium oxide, Mercury, Brick, Wood, Air
Define a compound. Give two points of evidence to show that sodium chloride is a compound.
What is the most common way of expressing the concentration of a solution ?
Explain what happens when a beam of light is passed through a colloidal solution.
Define Aerosol Give one example.
The solubility of ammonium chloride in water at various temperatures is given below :
| Temperature | : | 10°C | 20°C | 40°C | 60°C | 80°C |
| Solubility | : | 24 g | 37 g | 41 g | 55 g | 66 g |
What mass of ammonium chloride would be needed to make a saturated solution of ammonium chloride in fifty grams of water at 40°C ?
Name the process by which the various gases of the air are separated.
How will you separate iron pins from sand ?
Describe a method for separating a mixture of iron filings and sulphur powder other than that by using a magnet.
The technique which is used to separate particles of a solid suspended in a liquid quickly is called :
Naphthalene can be separated from sand :
The boiling point of liquid argon is :
Rusting of an article made up of iron is called
Which statement is not correct for a mixture
The fluidity of solids: ______.
Define the term matter.
