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Test: Beckmann Rearrangement - Chemistry MCQ


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17 Questions MCQ Test Organic Chemistry - Test: Beckmann Rearrangement

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

Only One Option Correct Type

Direction (Q. Nos. 1-7) This section contains 7 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. 

Which gives more than one amides on treatment with NH2OH followed by PCI5?

Detailed Solution for Test: Beckmann Rearrangement - Question 1

Unsymmetrical carbonyls give more than one oximes with hydroxylamine, hence more than one amides in the subsequent Beckmann rearrangement.

Test: Beckmann Rearrangement - Question 2

Which oximes on treatment with concentrated H2SO4 undergo rearrangement to give single amide?

Detailed Solution for Test: Beckmann Rearrangement - Question 2

Symmetrical oximes give single amide in Beckmann rearrangement.

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Test: Beckmann Rearrangement - Question 3

What would be the major organic product in the following oxidation reaction?

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In BV oxidation, tertiary alkyl group has greater migrating aptitude than primary and secondary alkyl group.

Test: Beckmann Rearrangement - Question 4

What is the final major product in the following reaction?

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Test: Beckmann Rearrangement - Question 5

What is the major organic product in the following reaction?

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Test: Beckmann Rearrangement - Question 6

What is X in the following reaction?

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Test: Beckmann Rearrangement - Question 7

What is X in the following reaction?

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*Multiple options can be correct
Test: Beckmann Rearrangement - Question 8

One or More than One Options Correct Type

Direction (Q. Nos. 8-11) This section contains 4 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

In the reaction given below,

Reagent X could be

Detailed Solution for Test: Beckmann Rearrangement - Question 8

Beckmann rearrangement of oximes can be carried out with either PCI5 or Conc. H2SO4 or SOCI2.

*Multiple options can be correct
Test: Beckmann Rearrangement - Question 9

Which reaction given below gives 2,2-dimethyl oxirane? 

Detailed Solution for Test: Beckmann Rearrangement - Question 9

(a) Addition of carbene at  gives oxirane.
(c) Epoxidation of alkene gives oxirane.

(d)

*Multiple options can be correct
Test: Beckmann Rearrangement - Question 10

In the reaction given below,

Q.

expected product(s) is/are

Detailed Solution for Test: Beckmann Rearrangement - Question 10

*Multiple options can be correct
Test: Beckmann Rearrangement - Question 11

The correct statainent(s) regarding the following reaction is/are

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Test: Beckmann Rearrangement - Question 12

Comprehension Type

Direction (Q. Nos. 12-14) This section contains a paragraph, describing theory, experiments, data, etc.
Three questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

Passage

Consider the following sequence of an organic synthesis


Q. 

If the starting compound has all its stereoisomers present, how many different oximes would be produced?

Detailed Solution for Test: Beckmann Rearrangement - Question 12

 

Test: Beckmann Rearrangement - Question 13

Consider the following sequence of an organic synthesis

Q. 

Which is not a part of neutral products?

 

Detailed Solution for Test: Beckmann Rearrangement - Question 13


(1) and (2) are the only rearrangement products.

Test: Beckmann Rearrangement - Question 14

Consider the following sequence of an organic synthesis

Q. 

What is the possible repeating unit of polymer formed at the end of the reaction ?

Detailed Solution for Test: Beckmann Rearrangement - Question 14


*Answer can only contain numeric values
Test: Beckmann Rearrangement - Question 15

One Integer Value Correct Type

Direction (Q. Nos. 15-17) This section contains 3 questions. When worked out will result in an integer from 0 to 9 {both inclusive).

 In the reaction 

Q. 

how many different amides are expected?


Detailed Solution for Test: Beckmann Rearrangement - Question 15

Both of pair below has one chiral carbon each, exist as a pair of enantiomers each.

*Answer can only contain numeric values
Test: Beckmann Rearrangement - Question 16

In the reaction  

Q.

how many different amides are expected?


Detailed Solution for Test: Beckmann Rearrangement - Question 16


*Answer can only contain numeric values
Test: Beckmann Rearrangement - Question 17

Q. 

How many lone pair of electrons are present in Y?


Detailed Solution for Test: Beckmann Rearrangement - Question 17

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