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JEE Exam  >  JEE Tests  >  Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - JEE MCQ

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - JEE MCQ


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30 Questions MCQ Test - Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones)

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) for JEE 2024 is part of JEE preparation. The Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) questions and answers have been prepared according to the JEE exam syllabus.The Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) below.
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 1
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Only One Option Correct Type

Direction (Q. Nos. 1-30) This section contains 30 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. 

What is the IUPAC name of the following compound?

Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 1

Phenyl group is a locant on the parent chain containing aldehyde as principal functional group.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 2
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What is the major organic product obtained from the following reaction?

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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 3
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What is the major organic product obtained from the following reaction?

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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 4
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What is the major organic product obtained from the following reaction ?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 4

Wittig reaction

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 5
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Which ketone-diol undergoes cyclisation to form the following acetal?
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 6
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What is the major organic product obtained from the following reaction?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 6

Six membered cyclic hemiacetal is formed.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 7
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What is the major organic product obtained from the following reaction?
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In the presence of rhodium, only olefinic bond is reduced.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 8
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What is the major organic product obtained from the following sequence of reaction?
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 9
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What is the major organic product obtained from the following sequence of reaction?
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 10
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Which of the following has the highest Keq for enolisation?

 
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 11
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Which of the following is the best description of the mechanism of the reaction between a ketone and an amine to form an imine?
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 12
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Which of the following statement is not true?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 12

A cetal formation occur in the presence of acid catalyst not in the presence of basic catalyst.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 13
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Which of the following is a reactive intermediate in the reaction of acetone with bromine in acetic acid to form 1 -bromo-2-propanone?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 13

α -halogenation occur via enol intermediate of aldehydes and ketones.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 14
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Which of the following reactions can be used to prepare the compound given below?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 14

All the three Grignard’s synthesis can be used to prepare the given compound.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 15
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Compound which does not give stereoisomers on treatment with hydroxylmine is
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 15

 is a symmetrical ketone, gives a single oxime with hydroxylamine.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 16
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The most stable enol from of the compund   
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It is more substituted and conjugated with carbonyl groups on both side.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 17
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What is the major product in the following reaction?
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 18
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Give the product of the following reaction.
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 19
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Which of the following reagent could be used to differentiate the following compounds by a visible change? 2-butanone and propanoic acid
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 19

(d) NaHCO3 gives effervescence with CH3CH2COOH. 

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 20
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An organic compound X produces Y in the first step of oxidation which on further oxidation gave an acid. Y on treatment with ammoniacal silver nitrate solution gave a black precipitate. X is likely to be a  
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 20

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 21
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The major product of the foilowing reaction is  

 
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 21

It is an example of intramolecular aldol  condensation followed by dehyration of aldol.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 22
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Which represents the best method for converting a carboxylic acid to an aldehyde?
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 23
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You have two C6H10O ketones, I and II. Both are optically active, but I is racemised by treatment with base and II is not. Wolff-Kishner reduction of both ketones give the same achiral hydrocarbon, formula C6H12. What reasonable structures may be assigned to I and II?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 23



Not racemises on treatment with base because its α -carbon is not chiral.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 24
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A C5H12O compound is optically active, and is oxidised by PCC in CH2CI2 to an optically active C5H10O product, which is racemised in acid or base. Which of the following best fits these facts?
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 25
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Which of the following compounds would not be a possible product from the mixed aldol reaction of acetaldehyde and butanal?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 25

It is an α-hydroxy aldehyde, which is never formed in aldol condensation.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 26
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Which reaction or sequence of reactions would be best used to convert cyclohexanone to cis-1,2-cyclohexanediol?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 26

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 27
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Arrange the following in the increasing order of reactivity towards aldol condensation reaction
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 27

Electron withdrawing group increases reactivity while electron donating group decreases reactivity in aldoi condensation reaction.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 28
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Provide the most suitable set of reagents required for the following trans formation.

 
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Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 29
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The major organic products in the following reaction are  

I. HCOOH
II. C6H5COOH
III. CH3OH 
IV. C6H5CH2OH 
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 29

In cross-Cannizaro reaction, formaldehyde is always oxidised, hence benzaldehyde is reduced in the present reaction.

Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 30
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The major organic product formed in the following reaction is 

 
Detailed Solution for Revisal Problems (Past 13 Year) JEE Main (Aliphatic Aldehydes And Ketones) - Question 30

It is an example of intramolecular Cannizaro reaction.

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