SELECT * FROM question_mgmt as q WHERE id=3962 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=8 AND subId=16 AND chapterId=181 and ex_no='5' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 9th science Is Matter Around Us Pure explain the following giving examples a satu

Question:

Explain the following giving examples.

(a) saturated solution
(b) pure substance
(c) colloid
(d) suspension

Answer:

(a)  A solution in which no more solute can be dissolved at a particular temperature. i.e. it contains the maximum amount of salute. Example: an aqueous sugŠ°r solution in which more sugar cannot be added.

(b) The substance which is formed by only one kind of particle and having a constant. Composition of chemicals and characteristics. Properties throughout the sample. Example :- sugar and salt contains only one kind of particle and have the name composition throughout.

(c) It is a heterogeneous mixture having salute size greater than Ihm and smaller than 100 mm. They can scatter beams of light passing through. Example :-  in milk, rubber, clouds etc. 

(d) These are heterogenous mixtures of solids dispersed in liquids. The solute particles are insoluble and remain suspended throughout the bulk of medium. the solute size is greater than 100 mm. Example - dust article in air, muddy water etc

 


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