Welcome to your Ncert – class 9- science – Chapter 2 – Is Matter Around Us Pure 2
Find out a separating technique to separate the following mixture and write a note on it.
Consider the list of following substances. How many of the following are pure substances?
Two immiscible liquids are separated by?
Sulphur sol contains
Which one of the following is not represented by sols
A colloidal system is a two-phase system. Point out which of the following combination can not be considered a colloidal system?
If the boiling point difference between the two liquids is less than 25ºC, the _______ method is used to separate them.
Which of the following does not represent a characteristic of pure substance?
Aqueous solution of a mixture contains LiCl,CuCl,NaCl and AlCl3This is shaken with ether. What is/are left in water?
All the substance which are made of the same kind of particles are called as ______.
A student was given a mixture of sulphur and iron fillings. He was told to heat the mixture and observe. What will be the colour of the compound formed?
Which of the following statement are false regarding colloidal solution?
Isotonic solutions are solutions having the same
The maximum amount of solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon?
Which method can be applied to separate a mixture of camphor and benzoic acid?
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