Suspension - class-IX
Description: suspension | |
Number of Questions: 24 | |
Created by: Jatin Goyal | |
Tags: chemistry matter around us nature of matter is matter around us pure composition of matter matter : nature and behaviour is matter pure |
Suspension is a heterogeneous mixture in which very fine particles of a solid are dispersed in any medium (liquid or gas). Fine particles of the solid remain suspended in the medium.
A teacher instructed four students $A, S, C$ and $D$ to prepare a suspension of chalk in water. The students prepared suspension in the following manner:
student $'A'$ places a piece of chalk in water.
student $'S'$ places powdered chalk in water.
student $'C'$ places powdered chalk in water and then shakes the mixture vigorously.
student $'D'$ places powdered chalk in dil. $HCl$.
Which of the following students has correct way of preparation of suspension?
Suspensions have solute particles with size less than 1 nm.
Suspension is a non-homogeneous mixture in which very fine particles of .................. are dispersed in .................
Muddy pond water and smoke is an example of a:
_______________ contains solid particles that are sufficiently large for sedimentation.
Suspensions are different from colloid because :
If a liquid is suspended in another liquid, it is called :
Suspensions transmit light. True or false?
A suspension of liquid droplets or fine solid particles in a gas is called :
Which of the following is an example of suspension?
Paste is:
Suspension is a :
Why are suspensions not stable?
Suspension shows Tyndall effect because of :
Which of the following has liquid as a dispersing medium?
A suspension of liquid droplets or fine solid particles in a gas is called as :
Which of the following is intermediate between suspension and solution?
Apparatus used to sediment particles in supension is :
Smog is an example of:
Match the List-I (Colloidal dispersion) with List-II (Nature of the dispersion) and select the correct answer using the codes given below the lists:
Lits-I(Cooloidal dispersion) | List-II(Nature of dispersion) |
---|---|
A. Milk | 1. Solid in liquid |
B.Clouds | 2. Liquid in gas |
C. Paints | 3. Solid in solid |
D. Jellies | 4. Liquid in liquid |
5. Liquid in solid |
Compounds that lowers the surface tension between two liquids or a liquid and a solid are called surfactants.
Powder coating is a process which requires a solvent to keep the binder and filler parts in a liquid suspension form.
Colour of colloids depends on which of the following factors?