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GOC - Stereochemistry - Reaction Mechanism


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60 Questions MCQ Test Mock Test Series for IIT JAM Chemistry | GOC - Stereochemistry - Reaction Mechanism

GOC - Stereochemistry - Reaction Mechanism for Chemistry 2023 is part of Mock Test Series for IIT JAM Chemistry preparation. The GOC - Stereochemistry - Reaction Mechanism questions and answers have been prepared according to the Chemistry exam syllabus.The GOC - Stereochemistry - Reaction Mechanism MCQs are made for Chemistry 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for GOC - Stereochemistry - Reaction Mechanism below.
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GOC - Stereochemistry - Reaction Mechanism - Question 1

The reaction given below is an example of:
  
 

GOC - Stereochemistry - Reaction Mechanism - Question 2


GOC - Stereochemistry - Reaction Mechanism - Question 3

The hyperconjugative stabilities of tert-butyl cation and 2-butene, respectively, are due to?

GOC - Stereochemistry - Reaction Mechanism - Question 4

Amongst the following, the compound which has the lowest energy barrier for the cis-trans isomerization is?

GOC - Stereochemistry - Reaction Mechanism - Question 5

The order of basicity among the following compounds is?
   

GOC - Stereochemistry - Reaction Mechanism - Question 6

Which of the following is the most stable conformer of the following molecule?

GOC - Stereochemistry - Reaction Mechanism - Question 7

In the given chemical reaction, major product will be?

GOC - Stereochemistry - Reaction Mechanism - Question 8

Following reaction goes through:

GOC - Stereochemistry - Reaction Mechanism - Question 9

The correct relation between the following compounds is:
  

GOC - Stereochemistry - Reaction Mechanism - Question 10

The major product formed in the following reaction is:

GOC - Stereochemistry - Reaction Mechanism - Question 11


Major product will be?

GOC - Stereochemistry - Reaction Mechanism - Question 12

Among the choices, the correct statements for A formed in the following reaction.
 

GOC - Stereochemistry - Reaction Mechanism - Question 13

The gauche interaction values for Me/Me, Me/Br, and Br/Br are 3.3, 0.8 and 3.0 kJ/mol, respectively. Among the following, the most stable conformation of 2, 3-dibromobutane is:

GOC - Stereochemistry - Reaction Mechanism - Question 14

For each of the following pairs of compounds, which is having second compound more stable than first compound:

GOC - Stereochemistry - Reaction Mechanism - Question 15

Choose the correct product of the following reaction:          

GOC - Stereochemistry - Reaction Mechanism - Question 16

 Which of the following groups has the highest priority according to the Cahn-Ingold-Prelog sequence rules?

Detailed Solution for GOC - Stereochemistry - Reaction Mechanism - Question 16

Ans: b

Explanation: According to the Cahn-Ingold-Prelog sequence rules: Compare the atomic number (Z) of the atoms directly attached to the stereocenter; the group having the atom of higher atomic number receives higher priority. 

Sequence of priority is: CH2Cl > −CHO > CH2OH > -CH3

GOC - Stereochemistry - Reaction Mechanism - Question 17

Lindane (hexachlorocyclohexane) is an agricultural insecticide that can also be used in the treatment of head lice.
   

Draw the other chair conformation (B) of Lindane and inspect which of the following statements are correct.

GOC - Stereochemistry - Reaction Mechanism - Question 18

The increasing order of pKa values of the circled hydrogen in the following compounds is?

  


    

GOC - Stereochemistry - Reaction Mechanism - Question 19

1, 2, 3, 4, 5, 6-hexamethylcyclohexane has 8 cis/trans stereoisomer. Which stereoisomer would be least likely to undergo conformation flipping?

GOC - Stereochemistry - Reaction Mechanism - Question 20

The major product formed in the following reaction is:

GOC - Stereochemistry - Reaction Mechanism - Question 21

The major product of the following reaction is:

GOC - Stereochemistry - Reaction Mechanism - Question 22

The absolute configuration for compounds X and Y respectively are:
  

Detailed Solution for GOC - Stereochemistry - Reaction Mechanism - Question 22

GOC - Stereochemistry - Reaction Mechanism - Question 23

The major product X and Y of the following reaction sequence are:

GOC - Stereochemistry - Reaction Mechanism - Question 24

Arrange the following compounds in order of Ca—Cb bond length:


GOC - Stereochemistry - Reaction Mechanism - Question 25

Among the following, the Newman projections of meso-2, 3-butanediol are:



GOC - Stereochemistry - Reaction Mechanism - Question 26

Among A-C, the compounds which can exhibit optical activity are:



GOC - Stereochemistry - Reaction Mechanism - Question 27

The correct order of acidity values of circled protons (in the following compound) will be?

GOC - Stereochemistry - Reaction Mechanism - Question 28

Choose the correct product of the following reaction:

GOC - Stereochemistry - Reaction Mechanism - Question 29

  
In the given chemical reaction, SOCl2 will react at:

GOC - Stereochemistry - Reaction Mechanism - Question 30

For the given reaction,

What should be the percentage of backside attack assuming complete reaction?           

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 31

Which of the following compound(s) has/have zero dipole moment:

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 32

Which of the following molecule(s) is/are anti-aromatic in nature:

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 33

Which of following is Z isomer?

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 34

The amount of optical rotation [a] depends on:           

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 35

Which of the following is/are correct in reference to the indicated property?

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 36

Which of the following statement(s) is/are true about the reaction given below?

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 37

Among the following, reaction(s) which gives tert-butyl benzene as the major product is/are:

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 38

Which one of the following carboxylic acids dose not undergo decarboxylation easily?

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 39

Racemic mixture formed among these reactions is(are):

*Multiple options can be correct
GOC - Stereochemistry - Reaction Mechanism - Question 40

The reaction(s) in which α-diazoketone can be sythesized?

*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 41

The total number of cyclic isomers possible for a hydrocarbon with the molecular formula C4H6 is:


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 42

An aqueous solution of an optically pure compound of concentration 100 mg in 1 ml of water and measured in a quartz tube of 5 cm length was found to be –3°. The magnitude of specific rotation is:


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 43

Consider the following reaction sequence:





The overall yield for the formation of p-hydroxyacetanilide and o-hydroxyacetanilides from phenol is____? [Provide combined value from both the yields]


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 44

Among the following, the number of aromatic compound(s) is:



   


Detailed Solution for GOC - Stereochemistry - Reaction Mechanism - Question 44

*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 45

Double bond equivalent in cubane is:


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 46

How many number of reaction/s form Benzyne intermediate:








*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 47

Reaction of 11.6 g of the aldehyde A with 462 mg of Wilkinson's catalyst provided 9.2 g of alkene B. The mole % of the catalyst used is ‘X’ and the yield of the reaction is ‘Y’. What is the value X+Y?



*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 48

In morphine molecule, number of centers having ‘R’ configuration:


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 49

X = Number of alkene which give chiral product on reductive ozonolysis:


  


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 50

Number of sp2 carbon in final product:


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 51

Among the following, the number of molecules that possess C2 axis of symmetry is…………….:

CHCl3 : 2, 5-dimethylthiophene


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 52

Among the following compounds, how many compound(s) are more reactive towards electrophilic substitution reaction than compound ‘A’?



*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 53

If μnet of cyclohexane-1, 4-dione is 1.2 D. and the mole fraction of chair conformer is 0.8, then find the dipole moment of twist boat. (in Debye)


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 54

The total number of chiral molecules:






*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 55

How many equivalents of PCl5 will be utilized in the given reaction?


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 56

x = Number of compound give 3° alcohol when reacts with HNO2/HCl?




*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 57

How many are correctly labbelled w.r.t. absolute configuration?




*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 58

The number of possible stereoisomers obtained in the following reaction is:


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 59

The antidepressant fluoxitene (ProzacTM) C17H18F3NO, when treated with H2/Ni gives a structure with molecular formula C17H18F3NO. It contains on triple bonds. How many rings are in fluoxitine?


*Answer can only contain numeric values
GOC - Stereochemistry - Reaction Mechanism - Question 60

The total number of stereoisomers of C4H8O3 which evolve CO2 with NaHCO3(aq):


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