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

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Number of electrophillic centres in the given compound is___

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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 - 24 June 2022 Shift 2>Q 124

120 g

of an organic compound which contains only carbon and hydrogen on complete combustion gives

330 g

{CO}_{2}

and

270 g

of water. The percentage of carbon and hydrogen in the organic compound are respectively

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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 - 24 June 2022 Shift 2>Q 125

Arrange the following carbocations in decreasing order of stability.

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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 - 24 June 2022 Shift 2>Q 126

0.2 g

of an organic compound was subjected to estimation of nitrogen by Dumas method in which volume of

N_{2}

evolved (at STP) was found to be

22.400 mL

. The percentage of nitrogen in the compound is - [nearest integer] (Given: Molar mass of

N_{2}

28 g {mol}^{- 1}

, Molar volume of

N_{2}

STP : 22.4 L

)

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 25 June 2022 Shift 1>Q 127

In the following structures, which one is having staggered conformation with maximum dihedral angle?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 25 June 2022 Shift 2>Q 128

During halogen test, sodium fusion extract is boiled with concentrated

{HNO}_{3}

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 26 June 2022 Shift 2>Q 129

The correct order of nucleophilicity 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 - 26 June 2022 Shift 1>Q 130

Given below are two statements :

Statement I : In 'Lassaigne's Test', when both nitrogen and sulphur are present in an organic compound, sodium thiocyanate is formed.

Statement II : If both nitrogen and sulphur are present in an organic compound, then the excess of sodium used in sodium fusion will decompose the sodium thiocyanate formed to give $NaCN$ and ${Na}_{2} S$ .

In the light of the above statements, choose the most appropriate answer from the options given below

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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 - 26 June 2022 Shift 1>Q 131

${(C_{7} H_{5} O_{2})}_{2} \overset{hv}{⟶} [X] \to 2 {\dot{C}}_{6} H_{5} + 2 {CO}_{2}$

Consider the above reaction and identify the intermediated ' $X$ '

Number of electrophillic centres in the given compound is___

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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