EASY
Earn 100

The method used to separate two miscible liquids is? (Distillation/ Decantation)

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Important Questions on Matter Around Us

MEDIUM

Which of the following are NOT correct methods for separating the components of given mixtures?

I. The mixture of Iodine and sodium chloride by sublimation.

II. Plant pigments by chromatography.

III. Mixture of acetic acid and water by separating funnel.

IV. Oxygen, argon and nitrogen from air by fractional distillation.

EASY
Which of the following mixtures can be separated by simple distillation?
EASY
A suitable method for the separation of pure naphthalene from sandy naphthalene is:
EASY
Glycerol is separated in soap industries by :
EASY
On heating camphor in a porcelain dish it got mixed in air without melting. This phenomenon is known as
MEDIUM
Components present in air can be separated by
MEDIUM
The correct match between items of List-I and List-II is
 
  List - I   List - II
(A) Coloured impurity (P) Steam distillation
(B) Mixture of o – nitrophenol and p –nitrophenol (Q) Fractional distillation
(C) Crude Naphtha (R) Charcoal treatment
(D) Mixture of glycerol and sugars (S) Distillation under reduced pressure
MEDIUM
A flask contains a mixture of isohexane and 3 -methylpentane. One of the liquids boils at 63oC while the other boils at 60oC. What is the best way to separate the two liquids and which one will be distilled out first?
EASY
Which of the following contain five molecules of water of crystallisation?
MEDIUM
Which method is used to separate cream from milk:
HARD

At a refinery, petroleum is separated into several components by a process called fractional distillation using a fractionating column. Which of the following statement is incorrect about the process?
(I) Temperature decreases from the bottom to the top of the column
(II) At each level in the column only one compound is collected
(III) The fraction collecting at the top of the column is less volatile
(IV) The fraction with the highest boiling point condenses first and gets collected near the base of the fractionating column.

MEDIUM
A mixture of two _____ liquids can be separated by distillation. (miscible/ immiscible)
EASY
Soluble impurities in water can be separated by
EASY
Two miscible liquids A and B are present in a solution. The boiling point of A is 52°C and that of B is 86°C. Suggest a method to separate them. (Simple distillation/ Fractional distillation)
MEDIUM
Discuss the method to separate a mixture of two miscible liquids.
MEDIUM
Suggest the separation process for the separation of benzene (Boiling point = 80°C) from toluene (Boiling point = 110°C) with which it is miscible.   
 
MEDIUM
Write a short note on distillation. Draw a suitable diagram.
MEDIUM
While diluting a solution of salt in water, a student by mistake added acetone (boiling point 56°C). What technique can be employed to get back the acetone? Justify your choice.
EASY

A mixture contains ether and toluene. Suggest the method to separate it.

HARD
Tabulate differences between distillation and fractional distillation.