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Test: Unsaturated Aldehydes & Ketones - NEET MCQ


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15 Questions MCQ Test Topic-wise MCQ Tests for NEET - Test: Unsaturated Aldehydes & Ketones

Test: Unsaturated Aldehydes & Ketones for NEET 2024 is part of Topic-wise MCQ Tests for NEET preparation. The Test: Unsaturated Aldehydes & Ketones questions and answers have been prepared according to the NEET exam syllabus.The Test: Unsaturated Aldehydes & Ketones MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Unsaturated Aldehydes & Ketones below.
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Test: Unsaturated Aldehydes & Ketones - Question 1

Only One Option Correct Type

Direction (Q. Nos. 1-5) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. 

Predict the major product in the given reaction, 

Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 1


Test: Unsaturated Aldehydes & Ketones - Question 2

The major organic product in the following reaction is 

 

Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 2

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Test: Unsaturated Aldehydes & Ketones - Question 3

What is the major product in the following reaction ?

  

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Test: Unsaturated Aldehydes & Ketones - Question 4

The major organic product in the following reaction is

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Test: Unsaturated Aldehydes & Ketones - Question 5

In the reaction given below, 

Q.

The final major product is

Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 5

*Multiple options can be correct
Test: Unsaturated Aldehydes & Ketones - Question 6

One or More than One Options Correct Type

Direction (Q. Nos. 6-9) 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,

Q. 

which reagent(s) below would undergo addition at olefinic bond?

Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 6

Weak nucleophiles (Cl , NH3) undergo conjugate addition. Strong nucleophiles (R-, H-) undergo direct addition.

*Multiple options can be correct
Test: Unsaturated Aldehydes & Ketones - Question 7

In the reaction given below, 

Q. 

which reagent(s) will bring about nucleophilic addition at carbonyl carbon?

Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 7

Strong nucleophiles (CH3MgBr, CH3Li) undergo direct addition.

*Multiple options can be correct
Test: Unsaturated Aldehydes & Ketones - Question 8

What is/are true about nucleophilic addition reaction at α, β-unsaturated carbonyl compound of type    

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Strong nucleophiles (like H- from LiAIH4) un dergo direct addition while weak nucleophiles (like R2CuLi, RNH2etc.) undergo conjugate addition at olefinic bond.

*Multiple options can be correct
Test: Unsaturated Aldehydes & Ketones - Question 9

Consider the following reaction, 

Q. 

The correct stalement(s) regarding mechanism of the above reaction and the reaction outcome is/are

Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 9

CH3COOH undergoes nucleophilic addition at conjugate position giving indicated product as major one.

Test: Unsaturated Aldehydes & Ketones - Question 10

Comprehension Type

Direction (Q. Nos. 10-12) 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 multistep synthesis :

 

Q. 

The hydrocarbon X is

Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 10

Y has 2 carbon extra than unsaturated ketone, hence starting compound must be acetylene and nucleophile undergoing conjugate addition is 

Test: Unsaturated Aldehydes & Ketones - Question 11

Consider the following multistep synthesis :


Q. 

The structure of compound Y is

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Test: Unsaturated Aldehydes & Ketones - Question 12

Consider the following multistep synthesis :

 

Q. 

 If X is replaced by pentane -2 ,4 -dione, product equivalent to Y would be

Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 12

*Answer can only contain numeric values
Test: Unsaturated Aldehydes & Ketones - Question 13

One Integer Value Correct Type

Direction (Q. Nos. 13-15) This section contains 3 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

Q. 

In the reaction given below, how many different stereoisomers of major product are possible?


Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 13

*Answer can only contain numeric values
Test: Unsaturated Aldehydes & Ketones - Question 14

In the reaction given as, 

some of the hydrogen undergo exchange by deuterium. At the most, how many deuterium atoj*is incorporation are possible per molecule of keton ?


Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 14

*Answer can only contain numeric values
Test: Unsaturated Aldehydes & Ketones - Question 15

Consider the following sequence of reaction,

Q. 

How many different stereoisomers of diol are formed ?


Detailed Solution for Test: Unsaturated Aldehydes & Ketones - Question 15



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