Match List-I with List-II List-I (Mixture) List-II (Purification Process) A Chloroform & Aniline I Steam distillation B Benzoic acid & Napthalene II Sublimation C Water & Aniline III Distillation D Napthalene & Sodium chloride IV Crystallisation

A - III , B - IV , C - I , D - II

A - IV , B - III , C - I , D - II

A - III , B - I , C - IV , D - II

A - III , B - IV , C - II , D - I

Match List-I with List-II. List-I List-II A I Spiro compound B II Aromatic compound C III Non-planar Heterocyclic compound D IV Bicyclo compound Choose the correct answer from the options given below

A - III , B - IV , C - I , D - II

A - II , B - I , C - IV , D - III

A - IV , B - III , C - I , D - II

A - IV , B - III , C - II , D - I

Given below are two statements: Statement I: Sulphanilic acid gives esterification test for carboxyl group. Statement II: Sulphanilic acid gives red colour in Lassigne’s test for extra element detection. In the light of the above statements, choose the most appropriate answer from the options given below:

Statement I is incorrect but Statement II is correct.

Statement I is correct but Statement II is incorrect.

Both Statement I and Statement II are incorrect

Both Statement I and Statement II are correct

Match items of column I and II Column I (Mixture of compounds) Column II (Separation Technique) A. H 2 O / CH 2 Cl 2 i. Crystallization B. ii. Differential solvent extraction C. Kerosene/Naphthalene iii. Column chromatography D. C 6 H 12 O 6 / NaCl iv. Fractional Distillation

A - ( ii ) , B - ( iii ) , C - ( iv ) , D - ( i )

A - ( iii ) , B - ( iv ) , C - ( ii ) , D - ( i )

A - ( i ) , B - ( iii ) , C - ( ii ) , D - ( iv )

A - ( ii ) , B - ( iv ) , C - ( i ) , D - ( iii )

MEDIUM

JEE Main

IMPORTANT

Earn 100

The correct decreasing order of priority of functional groups in naming an organic compound as per IUPAC system of nomenclature is

62.5% studentsanswered this correctly

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 26 July 2022 Shift 2>Q 155

Which of the following is not an example of benzenoid compound?

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 26 July 2022 Shift 2>Q 156

Total number of isomers (including stereoisomers) obtain on monochlorination of methylcyclohexane is

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 27 July 2022 Shift 1>Q 157

In Carius method of estimation of halogen.

0.45 g

of an organic compound gave

0.36 g

AgBr

. Find out the percentage of bromine in the compound.
(Molar masses :

AgBr = 188 g {mol}^{- 1} : Br = 80 g {mol}^{- 1}

)

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 27 July 2022 Shift 1>Q 158

Optical activity of an enantiomeric mixture is

+ 12.6 °

and the specific rotation of

(+)

isomer is

+ 30 °

. The optical purity is____

%

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 27 July 2022 Shift 2>Q 159

Match List-I with List-II

	List-I (Mixture)		List-II (Purification Process)
A	Chloroform & Aniline	I	Steam distillation
B	Benzoic acid & Napthalene	II	Sublimation
C	Water & Aniline	III	Distillation
D	Napthalene & Sodium chloride	IV	Crystallisation

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 28 July 2022 Shift 1>Q 160

Match List-I with List-II.

	List-I		List-II
A		I	Spiro compound
B		II	Aromatic compound
C		III	Non-planar Heterocyclic compound
D		IV	Bicyclo compound

Choose the correct answer from the options given below

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 28 July 2022 Shift 1>Q 161

Among the following marked proton of which compound shows lowest

{pK}_{a}

value?

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 28 July 2022 Shift 2>Q 162

Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$

Assertion $A$ : Thin layer chromatography is an adsorption chromatography.

Reason $R$ : A thin layer of silica gel is spread over a glass plate of suitable size in thin layer chromatography which acts as an adsorbent. In the light of the above statements, choose the correct answer from the options given below

The correct decreasing order of priority of functional groups in naming an organic compound as per IUPAC system of nomenclature is

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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