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Chemistry Fsc Part 1 Chapter 2 Online Test MCQs With Answers

Question # 1

Repeated extraction using small portions of solvent are more.

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Accurate

efficient

Slow

Rapid

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Question # 2

Solvent extraction is an equilibrium process and is controlled by.

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Law of mass action

The mount of solvent used

The amount of solute

Distribution law

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Question # 3

A filtration process could be very time consuming if it were not aided by a gentle suction, which is developed

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If the paper covers the funnel up to its circumference

If the paper has got small sized pores in it

If the stem of the funnel is large so that it dips into the filtrate

If the paper fits tightly

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Question # 4

Compound which undergo sublimation is

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KMnO4

CaCO3

NH4Cl

Na2CO3

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Question # 5

Which one of the following is not property of a good solvent.

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It should be inexpensive

It should dissolve impurities easily

It should dissolve large amount of solute at boiling point and less amount of solute at low temperature.

It should not react chemically with solute

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Question # 6

The comparative rates at which the solutes move in paper chromatography depends on.

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The size of paper used

Their Rt values solutes

Temp of the experiment

Size the chromate grapic tank

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Question # 7

Which one of the following methods will be used to separate the mixture of NaCl and sand.

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Chromatography

Solvent extraction

Sublimation

Filtration

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Question # 8

Drying agent used in crystallization is.

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P2O3

Animal charcoal

KMnO4

Water

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Question # 9

Which one is not example of a sublimate.

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NH4Cl

NaCl

Benzoic Acid

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