Purification & Characteristics of Organic Compounds-Purification (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1 - 7 of 12

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Question number: 1

» Purification & Characteristics of Organic Compounds » Purification » Sublimation

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MCQ▾

Question

Naphthalene is a volatile solid. It is best purified by?

Choices

Choice (4) Response

a.

Steam distillation

b.

Sublimation

c.

Distillation

d.

Crystallisation

Question number: 2

» Purification & Characteristics of Organic Compounds » Purification » Sublimation

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MCQ▾

Question

Methanol and Acetone can be separated by?

Choices

Choice (4) Response

a.

Distillation

b.

Steam distillation

c.

Fractional distillation

d.

Vacuum distillation

Question number: 3

» Purification & Characteristics of Organic Compounds » Purification » Distillation

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MCQ▾

Question

Aniline is separated from aniline water mixture by?

Choices

Choice (4) Response

a.

Sublimation

b.

Solvent extraction

c.

Fractional distillation

d.

Steam distillation

Question number: 4

» Purification & Characteristics of Organic Compounds » Purification » Chromatography

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MCQ▾

Question

Latest technique for purification, isolation, and separation of organic compound is?

Choices

Choice (4) Response

a.

Chromatography

b.

Crystallisation

c.

Steam distillation

d.

Vacuum distillation

Question number: 5

» Purification & Characteristics of Organic Compounds » Purification » Chromatography

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MCQ▾

Question

In column chromatography, the moving or mobile phase is?

Choices

Choice (4) Response

a.

Absorbent

b.

The substances which are to be separated

c.

Mixture of eluent client and substances to be separated

d.

Eluent

Question number: 6

» Purification & Characteristics of Organic Compounds » Purification » Distillation

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MCQ▾

Question

There are several criteria for purity of organic compounds, out of these which one is considered best?

Choices

Choice (4) Response

a.

Colour

b.

Microscopic examination

c.

Mixed melting point

d.

Melting point

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

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