NEET Chemistry MCQ: NCERT Organic Compound Purification | NEET.Guide Questions

Which of the following techniques is NOT typically used for the purification of organic liquids?

A

Distillation

B

Fractional distillation

C

Sublimation

D

Chromatography

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Purification, Organic Chemistry, Distillation, Sublimation, Chromatography

Related Questions

Which of the following process is not used for the purification of solid impurities?

A

Distillation

B

Sublimation

C

Crystallisation

D

Vaporisation

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Separation Techniques, Purification Methods

In the context of separating a mixture of ortho and para nitrophenols, what makes ortho-nitrophenol more amenable to steam distillation?

A

Higher molecular weight

B

Intermolecular hydrogen bonding

C

Lower melting point

D

Intramolecular hydrogen bonding

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

PYQ YEAR: 2017

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Separation Techniques, Hydrogen Bonding, Isomerism

The relative adsorption of each component of the mixture is expressed in terms of

A

adsorption factor

B

retention factor

C

co-factor

D

sorption factor

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :chromatography, adsorption, retention factor

Aniline is separated by:

A

Fractional crystallisation

B

Fractional distillation

C

Steam distillation

D

Vacuum distillation

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Separation techniques, Boiling point, Organic chemistry

An organic compound on heating with CuO produces ${\rm{C}}{{\rm{O}}_2}$ but no water. The organic compound may be

A

Carbon tetrachloride

B

Chloroform

C

Methane

D

Ethyl iodide

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Organic Chemistry, Oxidation, Combustion

Which of the following process is not used for the purification of solid impurities?

A

Crystallization

B

Sublimation

C

Chromatography

D

Distillation

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :Separation techniques, Purification of solids, Distillation, Sublimation, Crystallization, Vaporization

A highly impure sample of benzoic acid is contaminated with naphthalene. Which of the following techniques would be LEAST effective for purifying the benzoic acid?

A

Simple distillation

B

Sublimation followed by recrystallization

C

Recrystallization from hot water

D

Treatment with sodium bicarbonate followed by acidification

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Purification techniques, sublimation, recrystallization, distillation, acid-base properties

Fractional crystallisations is carried out to separate a mixture of

A

Organic solids mixed with inorganic solids

B

Organic solids slightly soluble in water

C

Organic solids having small difference in their solubilities in suitable solvent

D

Organic solids having great difference in their solubilities in suitable solvent

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :Fractional Crystallization, Solubility, Organic Solids, Separation Techniques

Impure glycerine can be purified by

A

Steam distillation

B

Simple distillation

C

Vaccum distillation

D

Extraction with a solvent

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :Separation techniques, Distillation, Vacuum distillation, Boiling point

The substance used as an adsorbent in the column chromatography is:

A

${\rm{N}}{{\rm{a}}_2}{\rm{O}}$

B

${\rm{N}}{{\rm{a}}_2}{\rm{S}}{{\rm{O}}_4}$

C

${\rm{A}}{{\rm{l}}_2}{{\rm{O}}_3}$

D

Alum

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :column chromatography, adsorbents

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