Match List I with List II. Choose the correct answer from the options given below :- List I Isomeric pairs List II Type of isomers A Propanamine and N- Methylethanamine I Metamers B Hexan-2-one Hexan-3-one II Positional isomers C Ethanamide and Hydroxyethanimine III Functional isomers D o-nitrophenol and pnitrophenol IV Tautomers

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

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

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

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

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 )

HARD

JEE Main

IMPORTANT

Earn 100

A sample of $0.125 g$ of an organic compound when analysed by Duma's method yields $22.78 mL$ of nitrogen gas collected over $KOH$ solution at $280 K$ and $759 mmHg$ . The percentage of nitrogen in the given organic compound is____

(a) The vapour pressure of water at $280 K$ is $14.2 mmHg$

(b) $R = 0.082 L atm K^{- 1} {mol}^{- 1}$

50% studentsanswered this correctly

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 24 January 2023 Shift 1>Q 164

Increasing order of stability of the resonance structure is:

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HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 24 January 2023 Shift 2>Q 165

Which will undergo deprotonation most readily in basic medium?

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EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 25 January 2023 Shift 1>Q 166

Which of the following conformations will be the most stable?

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 25 January 2023 Shift 2>Q 167

Match List I with List II.

Choose the correct answer from the options given below :-

	List I Isomeric pairs		List II Type of isomers
A	Propanamine and N- Methylethanamine	I	Metamers
B	Hexan-2-one Hexan-3-one	II	Positional isomers
C	Ethanamide and Hydroxyethanimine	III	Functional isomers
D	o-nitrophenol and pnitrophenol	IV	Tautomers

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 29 January 2023 Shift 1>Q 168

Compound that will give positive Lassaigne's test for both nitrogen and halogen is

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 29 January 2023 Shift 1>Q 169

Following chromatogram was developed by adsorption of compound ' $A$ ' on a $6 cm$ TLC glass plate. Retardation factor of the compound ' $A$ ' is _____ $\times 10^{- 1}$ .

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MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 29 January 2023 Shift 2>Q 170

When

0.01 mol

of an organic compound containing

60 %

carbon was burnt completely,

4.4 g

{CO}_{2}

was produced. The molar mass of compound is _____

{gmol}^{- 1}

(Nearest integer)

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 22 - Organic Chemistry- Some Basic Principles and Techniques>JEE Main - 30 January 2023 Shift 1>Q 171

What is the correct order of acidity of the protons marked $A - D$ in the given compounds?

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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