The correct match between items of List-I and List-II is List - I List - II (A) Coloured impurity (P) Steam distillation (B) Mixture of o – nitrophenol and p –nitrophenol (Q) Fractional distillation (C) Crude Naphtha (R) Charcoal treatment (D) Mixture of glycerol and sugars (S) Distillation under reduced pressure

( A ) - ( R ) , ( B ) - ( P ) , ( C ) - ( Q ) , ( D ) - ( S )

( A ) - ( R ) , ( B ) - ( S ) , ( C ) - ( P ) , ( D ) - ( Q )

( A ) - ( P ) , ( B ) - ( S ) , ( C ) - ( R ) , ( D ) - ( Q )

( A ) - ( R ) , ( B ) - ( P ) , ( C ) - ( S ) , ( D ) - ( Q )

The correct order for acid strength of compounds CH ≡ CH , CH 3 - C ≡ CH and CH 2 = CH 2 is as follows:

HC ≡ CH > CH 3 - C ≡ CH > CH 2 = CH 2

CH 3 - C ≡ CH > CH ≡ CH > CH 2 = CH 2

CH ≡ CH > CH 2 = CH 2 > CH 3 - C ≡ CH

CH 2 - C ≡ CH > CH 2 = CH 2 > HC ≡ CH

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 )

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IMPORTANT

Earn 100

Arrange the following labelled hydrogens in decreasing order of acidity:

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 2 September 2020 Shift 1>Q 99

In Carius method of estimation of halogen,

0.172 g

of an organic compound showed presence of

0.08 g

of bromine. Which of these is the correct structure of the compound ?

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 2 September 2020 Shift 1>Q 100

The $IUPAC$ name for the following compound is :

Question Image

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 19th April 2014>Q 101

The correct IUPAC name of the following compound

Question Image
is :

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JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 15th April 2018>Q 102

The correct match between items of List-I and List-II is

	List - I		List - II
(A)	Coloured impurity	(P)	Steam distillation
(B)	Mixture of o – nitrophenol and p –nitrophenol	(Q)	Fractional distillation
(C)	Crude Naphtha	(R)	Charcoal treatment
(D)	Mixture of glycerol and sugars	(S)	Distillation under reduced pressure

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JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 12th January 2019 Shift 1>Q 103

The correct order for acid strength of compounds

CH \equiv CH, {CH}_{3} - C \equiv CH

and

{CH}_{2} = {CH}_{2}

is as follows:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 12th April 2019 Shift 2>Q 104

The IUPAC name for the following compound is:

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 12th April 2019 Shift 1>Q 105

An organic compound ‘A’ is oxidized with

N a_{2} O_{2}

followed by boiling with

H N O_{3} .

The resultant solution is then treated with ammonium molybdate to yield a yellow percipitate. Based on a above observation, the element present in the given compound is:

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 12th April 2019 Shift 1>Q 106

The increasing order of the