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Isomerism - 2 - JEE MCQ


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30 Questions MCQ Test Chemistry for JEE Main & Advanced - Isomerism - 2

Isomerism - 2 for JEE 2024 is part of Chemistry for JEE Main & Advanced preparation. The Isomerism - 2 questions and answers have been prepared according to the JEE exam syllabus.The Isomerism - 2 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Isomerism - 2 below.
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Isomerism - 2 - Question 1

Which point on the potential energy diagram is represented by Newman projection shown here ?



Detailed Solution for Isomerism - 2 - Question 1

Gauche form

Isomerism - 2 - Question 2


Detailed Solution for Isomerism - 2 - Question 2


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Isomerism - 2 - Question 3

Which of the following compounds exhibits stereoisomerism ?    

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Isomerism - 2 - Question 4

The most stable conformation of 3-fluorobutan-2-ol is :

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Isomerism - 2 - Question 5

Observe the following structures I to III

Correct statement is :


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Only III has chiral centre and disymmetry.

Isomerism - 2 - Question 6

The general formula CnH2nO2 could be for open chain

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Isomerism - 2 - Question 7

S1 When value of dihedral angle is 180º then this conformation is called anti conformation ?
S2 When ϕ = 60º then this conformation is called gauche.
S3 When ϕ = 0º then this conformation is called eclipsed conformation.
S4 Other than staggered and eclipsed are called skew conformation

Detailed Solution for Isomerism - 2 - Question 7


Isomerism - 2 - Question 8

Which of the following structures are superimposable (identical) ?



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Structure (I) and (III) both have same configuration (S, R) and they are super imposable.

Isomerism - 2 - Question 9

The pair of compounds having the same general formula.

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Isomerism - 2 - Question 10

The total number of cyclic isomers possible for a hydrocarbon with the molecular formula C4His / are :
 

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Isomerism - 2 - Question 11

Which will show geometrical isomerism ?



Detailed Solution for Isomerism - 2 - Question 11

Follow conditions of geometrical isomerism.

Isomerism - 2 - Question 12

Total number of stereoisomer of compound is :

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6

Isomerism - 2 - Question 13

Which type of isomerism is observed between I and II ?


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There is change in C skeleton across the functional group.

Isomerism - 2 - Question 14

The correct relationship among the following pairs of given compounds is -



Detailed Solution for Isomerism - 2 - Question 14

I, II & III are metamers because functional group is diester & there is only change in alkyl group attachment.

Isomerism - 2 - Question 15

The total number of cyclic structural as well as stereo isomers possible for a compound with the molecular formula C5H10 is

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Isomerism - 2 - Question 16

The dihedral angle between two methyl groups in partially eclipsed conformation of n-butane is

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Isomerism - 2 - Question 17

What is the degree of unsaturation in a compound with molecular formula C9H6N4?

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9

Isomerism - 2 - Question 18

Which compound is not the isomer of 3-Ethyl-2-methylpentane ?

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Isomerism - 2 - Question 19

Which of the following shows functional isomerism ?


Detailed Solution for Isomerism - 2 - Question 19

Aldehyde and Ketone are functional isomers.

Isomerism - 2 - Question 20

Which of the following compound has 'D' configuration ?

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Isomerism - 2 - Question 21


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Isomerism - 2 - Question 22

The instrument which can be used to measure optical activity, i.e., specific rotation:

Detailed Solution for Isomerism - 2 - Question 22

Self explanatory

Isomerism - 2 - Question 23

Which point on the potential energy diagram is represented by Newman projection shown here ?



Detailed Solution for Isomerism - 2 - Question 23

Gauche form

Isomerism - 2 - Question 24


Detailed Solution for Isomerism - 2 - Question 24


Isomerism - 2 - Question 25

Which of the following compounds exhibits stereoisomerism ?    

Detailed Solution for Isomerism - 2 - Question 25


Isomerism - 2 - Question 26

The general formula CnH2nO2 could be for open chain

Detailed Solution for Isomerism - 2 - Question 26


Isomerism - 2 - Question 27

S1 When value of dihedral angle is 180º then this conformation is called anti conformation ?
S2 When ϕ = 60º then this conformation is called gauche.
S3 When ϕ = 0º then this conformation is called eclipsed conformation.
S4 Other than staggered and eclipsed are called skew conformation

Detailed Solution for Isomerism - 2 - Question 27


Isomerism - 2 - Question 28

The pair of compounds having the same general formula.

Detailed Solution for Isomerism - 2 - Question 28


Isomerism - 2 - Question 29

The total number of cyclic isomers possible for a hydrocarbon with the molecular formula C4His / are :

Detailed Solution for Isomerism - 2 - Question 29


Isomerism - 2 - Question 30

Which will show geometrical isomerism ?



Detailed Solution for Isomerism - 2 - Question 30

Follow conditions of geometrical isomerism.

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