Advertisements
Advertisements
Question
Which of the two will scatter light : soap solution or sugar solution ? Why ?
Advertisements
Solution
Soap solution is a colloidal solution. Therefore, it scatters light due to large particles and creates Tyndall effect.
APPEARS IN
RELATED QUESTIONS
Match the following
| Column A | Column B | ||
| (a) | Molecules | (i) | Water boils |
| (b) | 100° C | (ii) | Evaporation |
| (c) | 0° C | (iii) | Changes from solid to gas |
| (d) | At all temperatures | (iv) | Matter |
| (e) | Camphor | (v) | Water freezes |
Liquids have definite shape and definite volume.
Name the terms for the change of vapour into a liquid.
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
Which one is a kind of matter:
Which of the following materials fall in the category of a “pure substance”?
- Ice
- Milk
- Iron
- Hydrochloric Acid
- Calcium oxide
- Mercury
- Brick
- Wood
- Air
In a beam of sunlight entering a room, we can sometimes see dust particles moving in a haphazard way in the air. Why do these dust particles move?
Name one solid, one liquid and one gaseous non-metal.
Fill in the following blanks with suitable words :
The elements which are sonorous are called ..........................
What is the name of the clear liquid formed when a solid dissolves in a liquid ?
What is the concentration of a solution which contains 16 g of urea in 120 g of solution ?
Which of the following is a sol ?
Shaving cream, Milk, Fog, Soap solution, Hairspray
What is meant by the concentration of a solution ?
Fill in the following blanks with suitable words :
The separation of liquids by fractional distillation is based on the difference in their .....................
Explain how, impure copper sulphate can be purified by crystallisation.
Which of the following mixture cannot be separated by using water as the solvent ?
Pure copper sulphate can be obtained from an impure sample by the process of :
The physical state of water at 373 K is ______.
Define the term matter.
