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all the metho...

Question

all the methods which are used to separate out mixtures like centrifugation, chromatography etc all are physical changes and methods ??

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Solution

Yes these all the physical methods of separation of components of a mixture.

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Similar questions

Write the principle and applications of the following methods of separation:

(a) Separating funnel

(b) Centrifugation

(c) Paper chromatography

Q. Write answer to the following question in your own words.

(a) How are the components of mixtures separated by simple methods ?
(b) Which elements ( metals and non-metals), compounds and mixtures do we use in our day-to-day life?
(c) In everyday life, where and for what purpose do we use centrifugation?
(d) Where are the methods of separation by distillation and by separating funnel used ? Why ?
(e) Which precaution will you take while using the methods of distillation and separation by separating funnel ?

On what principle of the following methods of separation based give one example of a mixture for each of the methods mentioned in which they are used

A. Sublimation,and

B. Chromatography

Q. Match List - I (Mixture to be separated) with the List - II (Method used) and select the correct option using the codes given below.

List - I (mixture to be separated)	List - II (Method used)
$(A)$ Petroleum products	$(I)$ Chromatography
$(B)$ Camphor and rock salt	$(I I)$ Centrifugation
$(C)$ Cream from milk	$(I I I$ ) Sublimation
$(D)$ Coloured components in a dye	$(I V)$ Fractional distillation

Q. Physical methods can only be used to separate pure substances not mixtures.

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