Can someone please answer the questions...Q24 and Q25...plzz
I have already asked this question multiple times but no answer....
Is brainly students like this..??
If anyone knows it's answer plzz plzz tell me..!!... It's for class 9th
plzzz I request you to answer this time...No spam plzzz...I request
Answers
Answer:
24)(a) Example Mixture of acetone and water.
Method Simple distillation can be used to separate a mixture of volatile and non-volatile components.
(b)Example Mixture of kerosene and petrol.
Method Simple distillation can be used to separate two volatile components with appreciable difference in boiling points.
(c) Example Mixture of mustard oil and water.
Method Separating funnel is used to separate a mixture of immiscible liquids.
(d)Example Mixture of ammonium chloride and common salt.
Method Sublimation can be used to separate the mixture in which one component changes directly from solid to gas.
25)(a) A colloid is a heterogeneous mixture and its components can be separated by the technique known as centrifugation. (b) Ice, water and water vapour look different and display different physical properties but they are chemically the same. (c) A mixture of chloroform and water taken in a separating funnel is mixed and left undisturbed for some time. The upper layer in the separating funnel will be of water and the lower layer will be that of chloroform. (d) A mixture of two or more miscible liquids, for which the difference in the boiling points is less than 25 K can be separated by the process called fractional distillation.
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