Purification & Characteristics of Organic Compounds-Purification [NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry]: Questions 7 - 12 of 12

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Question number: 7

» Purification & Characteristics of Organic Compounds » Purification » Sublimation

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MCQ▾

Question

Sublimation is a process in which a solid?

Choices

Choice (4)Response

a.

Changes into vapour from

b.

Changes into liquid form

c.

Changes into another allotropic form

d.

None of the above

Question number: 8

» Purification & Characteristics of Organic Compounds » Purification » Distillation

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MCQ▾

Question

Ether and toluene mixture can be separated by?

Choices

Choice (4)Response

a.

Simple distillation

b.

Fractional distillation

c.

Steam distillation

d.

Vacuum distillation

Question number: 9

» Purification & Characteristics of Organic Compounds » Purification » Distillation

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MCQ▾

Question

Glycerol is purified by which of the following methods?

Choices

Choice (4)Response

a.

Steam distillation

b.

Sublimation

c.

Simple distillation

d.

Vacuum distillation

Question number: 10

» Purification & Characteristics of Organic Compounds » Purification » Distillation

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MCQ▾

Question

Steam distillation is applied to those organic compounds which are steam volatile and?

Choices

Choice (4)Response

a.

Sparingly soluble in water

b.

Insoluble in all solvents

c.

Insoluble in water

d.

Soluble in water

Question number: 11

» Purification & Characteristics of Organic Compounds » Purification » Chromatography

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MCQ▾

Question

In paper chromatography, stationary phase is solid and mobile phase is?

Choices

Choice (4)Response

a.

Semisolid

b.

Gas

c.

Liquid

d.

Solid

Question number: 12

» Purification & Characteristics of Organic Compounds » Purification » Distillation

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MCQ▾

Question

Two volatile and miscible liquids can be separated by fractional distillation into pure components under the conditions when?

Choices

Choice (4)Response

a.

The boiling points of the liquids are close to each other

b.

They have low boiling points

c.

They do not form azeotropic mixture

d.

The difference in their boiling points is large

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