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Test: Pericyclic Level - 3 - Chemistry MCQ


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30 Questions MCQ Test Organic Chemistry - Test: Pericyclic Level - 3

Test: Pericyclic Level - 3 for Chemistry 2024 is part of Organic Chemistry preparation. The Test: Pericyclic Level - 3 questions and answers have been prepared according to the Chemistry exam syllabus.The Test: Pericyclic Level - 3 MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Pericyclic Level - 3 below.
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Test: Pericyclic Level - 3 - Question 1

The major product of the following electrocyclic addition reaction is:

Test: Pericyclic Level - 3 - Question 2

The major product formed in the following reaction is:

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Test: Pericyclic Level - 3 - Question 3

In the two step reaction shown below, identify the correct combination of products P and Q:

Test: Pericyclic Level - 3 - Question 4

The most appropriate starting materials for one step: 

Test: Pericyclic Level - 3 - Question 5

The reaction between X and Y to given Z proceeds via:

Test: Pericyclic Level - 3 - Question 6

In the reaction sequence, the major products X and Y, respectively are:

Test: Pericyclic Level - 3 - Question 7

The major product formed in the following reaction is:

Test: Pericyclic Level - 3 - Question 8

The major product of the following reaction is:

Test: Pericyclic Level - 3 - Question 9

The major product of the following reaction is:

Test: Pericyclic Level - 3 - Question 10

The major product formed in the following reaction is:

Test: Pericyclic Level - 3 - Question 11

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

Test: Pericyclic Level - 3 - Question 12

The major product formed in the following reaction is:

Test: Pericyclic Level - 3 - Question 13

The major product formed in the following reaction is:

Test: Pericyclic Level - 3 - Question 14

The major product formed in the following reaction is:

Test: Pericyclic Level - 3 - Question 15

In the following concerted reaction, the product is formed by a: 

Test: Pericyclic Level - 3 - Question 16

The number of nodes present in the highest occupied molecular orbital of 1, 3, 5-hexatiriene in its ground state in thermal conditions is:

Test: Pericyclic Level - 3 - Question 17

Select the correct classification in the following reaction from options I to IV gives below:

(I) Conrotatory electrocyclic reaction
(II) Disrotatory electrocyclic reaction
(III) Valence iso merization
(IV) [π4S + π2a] Cycloaddition reaction

Test: Pericyclic Level - 3 - Question 18

The thermal ring opening reactions of cyclo butane are:

Test: Pericyclic Level - 3 - Question 19

Hydrogen bonding is maximum in:

Detailed Solution for Test: Pericyclic Level - 3 - Question 19

Ans: a

Explanation: Hydrogen bonding is maximum in ethanol. Hydrogen bonding is observed when the H atom is attached to more electronegative N, F or O atoms. Thus, hydrogen bonding is possible in ethanol and triethylamine. In ethanol, H is attached to more electronegative oxygen than in triethylamine, in which H is attached to less electronegative nitrogen. Moreover, in triethylamine, the +I effect of three methyl groups decreases the extent of hydrogen bonding.

Test: Pericyclic Level - 3 - Question 20

The major product of the following reaction is:

Test: Pericyclic Level - 3 - Question 21

Give the product expected from heating following compound:

Test: Pericyclic Level - 3 - Question 22

For the following concerted reaction specify the condition and mode of rotation:

Test: Pericyclic Level - 3 - Question 23

Predict the stereochemistry of the product X:
 

Test: Pericyclic Level - 3 - Question 24

Which of the following electro cyclic reactions show correct equilibrium state:

Test: Pericyclic Level - 3 - Question 25

Predict the stereochemistry of the product:

Test: Pericyclic Level - 3 - Question 26

Which of the following compounds on distillation not loses its optical activity:

Test: Pericyclic Level - 3 - Question 27

The major product B is: 

Test: Pericyclic Level - 3 - Question 28

Which of the following reaction gives same product in photochemical as well as thermalb conditions:

Test: Pericyclic Level - 3 - Question 29

The major product B is:

Test: Pericyclic Level - 3 - Question 30

The compound R on treatment with heat or light gives K and C, respectively is:

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