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Test: Sigmatropic - Chemistry MCQ


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30 Questions MCQ Test Organic Chemistry - Test: Sigmatropic

Test: Sigmatropic for Chemistry 2024 is part of Organic Chemistry preparation. The Test: Sigmatropic questions and answers have been prepared according to the Chemistry exam syllabus.The Test: Sigmatropic MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Sigmatropic below.
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Test: Sigmatropic - Question 1

The product obtained in the following reaction is (are): 

Test: Sigmatropic - Question 2

Thermal rearrangement of the following compound would give:

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Test: Sigmatropic - Question 3

The major product formed in the thermal reaction given below, is:

Test: Sigmatropic - Question 4

The major product P of the given reaction is:

Test: Sigmatropic - Question 5

In the reaction the major products X and Y are:

Test: Sigmatropic - Question 6

In the reaction, the major product (X) is:

Test: Sigmatropic - Question 7

The pericyclic reaction given below is an example of:

Test: Sigmatropic - Question 8

Claisen rearrangement is an example of:

Test: Sigmatropic - Question 9

The product of the following reaction is: 

Test: Sigmatropic - Question 10

In sigmatropic thermal expansion of 1, 1-dicyclopropyl ethene, the final product:

Test: Sigmatropic - Question 11

Give the structure of the product in the following reaction:

Test: Sigmatropic - Question 12

This sigmatropic reaction is example of:

Test: Sigmatropic - Question 13

The following transformation proceeds by the sequence indicated. Give the structure of product: 

Detailed Solution for Test: Sigmatropic - Question 13

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Hence C is the correct answer.

Test: Sigmatropic - Question 14

Allyl aryl ether on heating at 200°C give the major product:

Test: Sigmatropic - Question 15

Which of adducts (a)-(d) is the main product of the following Diels-Alder reaction?

Test: Sigmatropic - Question 16

Consider the following statements:

(I) Clasisen rearrangement is a [3, 3] sigmatropic rearrangement.
(II) Cope rearrangement proceeds via is chair like transition state.
(III) In the photochemical [2 + 2] cycloaddition of ethylene overlapping of HOMO of one molecule with LUMO of the other molecular takes place.

Select the correct statements.

Test: Sigmatropic - Question 17

The product is:

Test: Sigmatropic - Question 18

The major product of the following reaction is:

Test: Sigmatropic - Question 19

The major product of the following reaction is:

Test: Sigmatropic - Question 20

In which of the following reaction, which sigmatropic reaction will take place:

Test: Sigmatropic - Question 21

The reaction given below is an example of:

Test: Sigmatropic - Question 22

Among the following dienes, the one that undergoes a degenerate Cope rearrangement is:

Test: Sigmatropic - Question 23

Pericyclic reaction involved in one of the steps of the following reaction sequence is:

Test: Sigmatropic - Question 24

The product formed and the process involved in the following reaction is:

Test: Sigmatropic - Question 25

The two step conversion of 7-dehydrocholesterol to vitamin D3 proceeds through:

Test: Sigmatropic - Question 26

The major product formed in the following reaction is:

Test: Sigmatropic - Question 27

With respect to the following biogenetic conversion of chorismic acid (A) to 4-ydroxyphenylpyruvic acid (C), the correct statement is:

Test: Sigmatropic - Question 28

Formation of the ketone (II) fro m the diazoketone (I) involves:

Test: Sigmatropic - Question 29

The reaction is given below is an example of:

Test: Sigmatropic - Question 30

The major product is:

Detailed Solution for Test: Sigmatropic - Question 30

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