Download App

Is Matter Around Us Pure — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure1 Mark
Question
Which one amongst the following will show Tyndall effect?
Copper sulphate solution.
✓

Answer

(b) milk and (d) starch solution show Tyndall effect because they are colloidal solution.
Whereas (a) salt solution and (c) copper sulphate solution are true solution. Their particle size is too small to scatter light. So they do not show Tyndall effect.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Do as directed; [Che-1 M]" from Is Matter Around Us Pure→Is Matter Around Us Pure — all question types→Science STD 9 question papers→CBSE Board STD 9 question papers→CBSE Board question paper generator→

Similar questions

State the number of atoms present in the following chemical species,

$\text{PO}^{3-}_4$

→
Give the number of protons, neutrons and electrons per atom in the two isotopes of chlorine $^{35}_{17}\text{Cl}\text{ and }^{37}_{17}\text{Cl}.$
→
Name the process by which the various gases of the air are separated.
→
Give the names of the elements present in the following compounds.

Potassium sulphate.

→
Out of solids, liquids and gases, which one has:
Maximum interparticle attractions?
→
Identify colloid from the following mixtures. Muddy water, sugar in water, ink, blood, soda water, foam:
→
Stat the chemical symbols for the following elements:
Sodium, Potassium, Iron, Copper, Mercury, Silver.
→
Define matter. Give four examples of matter.
→
Name the isotope used as a fuel in nuclear reactors.
→
What is the relationship between an atom containing 11 protons, 11 electrons ad 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neurtrons?
→