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Crystallisation

Which of the ...

Question

Which of the following process would be used to obtain the components of copper sulphate solution in water?

A

Use of separating funnel

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B

Distillation

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C

Evaporation

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D

Chromatography

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Solution

The correct option is C
Evaporation

Copper sulphate solution is subjected to evaporation. The liquid evaporates leaving beyond the solid crystals of copper sulphate.

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Similar questions

Q. Which of these methods will you use to obtain both the solid and the liquid from a solution?
(a) decantation and filtration
(b) evaporation
(c) distillation
(d) separating funnel

Which of these methods will you use to obtain both the solid and the liquid from a solution?
(a) separating funnel
(b) evaporation
(c) distillation
(d) decantation and filtration

Q. Pure copper sulphate can be obtained from an impure sample by the process of :
(a) evaporation
(b) fractional distillation
(c) centrifugation
(d) crystallisation

Q. All of the following processes involve a separation of either a mixture into its components or a compound into elements. For each, decide whether the physical process or chemical reaction is required.
a. Sodium metal is obtained from the substance Sodium chloride.
b. Iron filings are separated from the sand by using a magnet,
c. Sugar crystals are separated from sugar syrup by the evaporation of water.
d. Fine crystals of Silver chloride are separated from a suspension of the crystals in water.
e. Copper is produced when Zinc metal is placed in a solution of Copper (II) sulphate, a compound.

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 ?

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