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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A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consisting of $(A)$ benzanilide $(B)$ aniline and $(C)$ acetophenone. When the column is eluted with a mixture of solvents, hexane:ethyl acetate $(20 : 80)$ , the sequence of obtained compounds is:

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 7th January 2020 Shift 2>Q 41

In the following reaction sequence, structures of $A$ and $B$ are, respectively

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 7th January 2020 Shift 1>Q 42

A solution of

m -

chloroaniline,

m -

chlorophenol, and

m -

chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of

N a H C O_{3}

to give fraction

A

. The leftover organic phase was extracted with a dilute

N a O H

solution to give a fraction

B

. The final organic layer was labelled as a fraction

C

. Fractions

A, B

and

C,

contain respectively:

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 7th January 2020 Shift 1>Q 43

The increasing order of

p K_{b}

for the following compounds will be :
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 7th April 2013>Q 44

A solution of

(-) 1 - chloro - 1 - phenylethane

in toluene racemises slowly in the presence of a small amount of SbCl₅, due to the formation of :

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 7th April 2013>Q 45

The order of stability of the following carbocations:
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 6th April 2014>Q 46

For the estimation of nitrogen,

1.4 g

of an organic compound was digested by the Kjeldahl method and the evolved ammonia was absorbed in

60 ml

\frac{M}{10}

sulphuric acid. The unreacted acid required

20 ml

\frac{M}{10}

sodium hydroxide for complete neutralization. The percentage of nitrogen in the compound is

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 6th April 2014>Q 47

Among the following oxoacids, the correct decreasing order of acid strength is :

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 6th April 2014>Q 48

Considering the basic strength of amines in an aqueous solution, which one has the smallest

{pK}_{b}

value?

A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consisting of A benzanilide B aniline and C acetophenone. When the column is eluted with a mixture of solvents, hexane:ethyl acetate 20:80 , the sequence of obtained compounds is:

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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