Advertisements
Advertisements
Question
What will happen if a saturated solution is :
- heated
- cooled
Solution
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
RELATED QUESTIONS
The smallest unit of matter that exists freely in nature is called ...........
Define the term matter. What is it composed of?
Liquids have definite shape and definite volume.
Define the following term of Matter .
State two characteristics of matter demonstrated by Brownian motion.
What is meant by saying that metals are lustrous ?
What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
Which of the following contains less solute at a given temperature and pressure ? Unsaturated solution or Saturated solution.
Explain what happens when a beam of light is passed through a colloidal solution.
Which of the following are chemical changes and which physical ? Give reason.
- a glass bottle breaking
- coal burning in air
- making a cake
- wool being knitted into a sweater
Name the process by which all the dye can be recovered from black ink.
Which of the following mixture cannot be separated by using water as the solvent ?
You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?
Tincture of iodine is a mixture of two materials X and Y. The material Y has a property that its solid form can be converted directly into vapours on heating by a process called Z.
- What could X be ?
- What could Y be ?
- Name the process Z.
- Which process would you use to recover both the components X and Y from tincture of iodine ?
- Which process can be used to recover only component Y from tincture of iodine ?
Which among the following ______ will get attracted to by magnet?
You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster?
Complete the following table:
S.No. | CELSIUS | KELVIN |
1. | 90°C | 363 K |
2. | ______ | 283 K |
3. | 63 °C | ______ |
4. | 250°C | ______ |
5. | ______ | 303 K |
Define the term matter.