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

A liquid decomposes at its normal boiling point. It can be purified by

A

Sublimation

B

Steam distillation

C

Vacuum distillation

D

Fractional distillation

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :boiling point, decomposition, purification techniques, vacuum distillation

Related Questions

The process of separating a solid from a liquid by pouring off the liquid is known as:

A

Filtration

B

Decantation

C

Crystallization

D

Sublimation

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, Decantation

In estimation of nitrogen by Duma's method 1.18 g of an orgainc compound gave 224 mL of ${N_2}$ at NTP. The percentage of nitrogen in the compound is

A

20

B

11.8

C

47.7

D

23.7

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :3 mins

🔄Ncert Concepts :Duma's method, stoichiometry, gas laws, percentage composition

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

A mixture of benzoic acid and benzamide is dissolved in diethyl ether. Which of the following would be the MOST efficient method to separate the two compounds?

A

Fractional distillation

B

Recrystallization from hot water

C

Extract the ethereal solution with aqueous sodium bicarbonate, then acidify the aqueous layer to recover benzoic acid; evaporate the ether to recover benzamide.

D

Steam distillation

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 :Acid-base extraction, solubility, separation techniques, benzoic acid, benzamide

Anthraquinone is prepared by the oxidation of anthracene by chromic acid. The crude reaction product is usually purified by

A

Fractional Crystallisation

B

Distillation

C

Steam distillation

D

Sublimation

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :purification techniques, sublimation, organic chemistry

Which method is used to purify liquids that decompose at or below their boiling points?

A

Simple distillation

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:Application

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Purification, Organic Chemistry, Distillation, Vacuum distillation

Which is most commonly used to dry organic liquids?

A

Anhydrous magnesium sulfate

B

Sodium chloride

C

Calcium carbonate

D

Potassium permanganate

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 :drying agents, organic chemistry, alkali metals

Which of the following statement is not applicable to Beilstein test?

A

It detects the presence of halogens

B

It is a qualitative test

C

It uses a copper wire

D

It is a quantitative test

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Beilstein test, Halogens, Qualitative analysis

The best method for the separation of naphthalene and benzoic acid from their mixture is

A

Chromatography

B

Crystallisation

C

Distillation

D

Sublimation

Question Tags

📚 Subject:Chemistry

📑 Chapter:Organic Chemistry: Some basic principles and techniques

🎯Topic:Purification Of Organic Compounds

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :separation techniques, solubility, polarity, intermolecular forces, organic compounds

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

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