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Carboxylic Acid Derivatives — NEET UG Chemistry PYQs

368 previous year questions from Carboxylic Acid Derivatives with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

368 questionsChemistrySolutions on every page
1

Which of the following acids is tricarboxylic acid?

MHT CET Medical 2026 Solution View → 2

Identify the process of making soap by the hydrolysis of fats and oils.

MHT CET Medical 2026 Solution View → 3

Identify the trend of solubility of carboxylic acid in water.

MHT CET Medical 2026 Solution View → 4

Identify the product of acid hydrolysis of propane nitrile.

MHT CET Medical 2026 Solution View → 5

Which of the following acid does NOT contain -COOH group?

MHT CET Medical 2026 Solution View → 6

Which of the following acid has the highest acid strength? (A) Acetic acid (B) fluoroacetic acid (C) 4-Nitrobenzoic acid (D) 4-Methyl Benzoic acid is

MHT CET Medical 2026 Solution View → 7

What is the number of - COOH groups in a citric acid molecule?

MHT CET Medical 2026 Solution View → 8

The order of strength of carboxylic acid is Find the correct order.

MHT CET Medical 2026 Solution View → 9

Identify the organic compound having highest boiling point from following.

MHT CET Medical 2026 Solution View → 10

Given below are two statements: Statement-I : Oxidation of p -nitrotoluene with acidic KMn O₄ gives an acid that is stronger than benzoic acid. Statement-II : Reduction of p -nitro

NEET 2026 Solution View → 11

The correct order of decreasing acidity of the following aliphatic acids is :-

NEET 2025 Solution View → 12

For the given reaction: 'P' is

NEET 2024 Solution View → 13

Match List I with List II. Choose the correct answer from the options given below:

NEET 2024 Solution View → 14

Weight (g) of two moles of the organic compound, which is obtained by heating sodium ethanoate with sodium hydroxide in presence of calcium oxide is :

NEET 2023 Solution View → 15

The following conversion is known as

NEET 2023 Solution View → 16

The product formed from the following reaction sequence is:

NEET 2022 Solution View → 17

RMgX + CO 2 → ether dry Y ⟶ H 3 O + RCOOH What is Y in the above reaction?

NEET 2022 Solution View → 18

The incorrect method to synthesize benzaldehyde is:

NEET 2022 Solution View → 19

Consider the above reaction and identify the missing reagent/chemical.

NEET 2021 Solution View → 20

Which of the following acid will form an (a) Anhydride on heating and (b) Acid imide on strong heating with ammonia?

NEET 2020 Solution View → 21

The major product of the following reaction is:

NEET 2019 Solution View → 22

Assertion : Anhydrides are more reactive than esters for nucleophilic substitution reaction. Reason : RCOO ⁻ is better leaving group than R - O ⁻ .

NEET 2019 Solution View → 23

Assertion : CH ₃ COOH but not HCOOH can be halogenated in presence of red P and Cl ₂ . Reason : Both formic acid and CH ₃ COOH are highly soluble in water.

NEET 2019 Solution View → 24

Neopentyl chloride reacts with benzene in presence of a Lewis acid ( AlCl ₃ ) to form

JIPMER 2018 Solution View → 25

What are the suitable reagents for the following conversion?

NEET 2018 Solution View → 26

Neopentyl chloride reacts with benzene in presence of a Lewis acid ( AlCl ₃ ) to form

NEET 2018 Solution View → 27

Consider the following set of reactions : The structure of D would be

NEET 2017 Solution View → 28

Consider the following compounds. The decreasing order of decarboxylation is

JIPMER 2016 Solution View → 29

Consider the following compounds. The decreasing order of decarboxylation is

NEET 2016 Solution View → 30

When a mixture of 1-hexanol and hexanoic acid in diethyl ether is shaken with an aqueous NaHCO ₃ solution, then which of the following is right distribution?

JIPMER 2015 Solution View → 31

Which one of the following esters gets hydrolyzed most easily under alkaline conditions?

NEET 2015 Solution View → 32

Benzoic acid is treated with lithium aluminium hydride. The compound obtained is

NEET 2015 Solution View → 33

Assertion: Formic acid reduces mercuric chloride to mercurous chloride on heating, while acetic acid does not. Reason : Formic acid is a stronger acid than acetic acid.

NEET 2015 Solution View → 34

When a mixture of 1-hexanol and hexanoic acid in diethyl ether is shaken with an aqueous NaHCO ₃ solution, then which of the following is right distribution?

NEET 2015 Solution View → 35

The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of

JIPMER 2014 Solution View → 36

Which one of the following reactions does not form gaseous product?

JIPMER 2014 Solution View → 37

Assertion: ( CH ₃ )₃ CCOOH does not give HVZ reaction. Reason: ( CH ₃ )₃ CCOOH does not have -hydrogen atom.

NEET 2014 Solution View → 38

The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of

NEET 2014 Solution View → 39

Which one of the following reactions does not form gaseous product?

NEET 2014 Solution View → 40

The correct order of increasing acidic strength is

JIPMER 2013 Solution View → 41

The correct order of increasing acidic strength is

NEET 2013 Solution View → 42

Acetic anhydride is prepared in the laboratory by heating sodium acetate with

JIPMER 2012 Solution View → 43

In a set of reactions, acetic acid yielded a product S . CH ₃ COOH SOCl ₂ P Benzene Anhy. AlCl ₃ Q HCN R HOH S The structure of S would be

NEET 2012 Solution View → 44

Acetic anhydride is prepared in the laboratory by heating sodium acetate with

NEET 2012 Solution View → 45

In a set of reactions, m -bromobenzoic acid gave a product D . Identify the product D .

NEET 2011 Solution View → 46

Maximum decarboxylation occurs in

NEET 2011 Solution View → 47

In a set of reactions, ethyl benzene yielded a product D . ' D ' would be

NEET 2010 Solution View → 48

Consider the following reaction, Phenol Zn dust X Anhydrous AlCl ₃ CH ₃ Cl Y array l Alkaline KMnO array Z , the product, Z , is

NEET 2009 Solution View → 49

Propionic acid with Br ₂- P yields a dibromo product. Its structure would be

NEET 2009 Solution View → 50

Consider the following reaction :

NEET 2009 Solution View → 51

Predict the product :

NEET 2009 Solution View → 52

Trichloroacetaldehyde, CCl ₃ CHO reacts with chlorobenzene in presence of sulphuric acid and produces -

NEET 2009 Solution View → 53

Assertion : Esters which contain -hydrogens undergo Claisen condensation. Reason : LiAlH ₄ reduction of esters gives acids.

NEET 2009 Solution View → 54

Sodium formate on heating gives

JIPMER 2008 Solution View → 55

Sodium formate on heating gives

NEET 2008 Solution View → 56

In a set of reactions, acetic acid yielded a product D . CH ₃ COOH SOCl ₂ A [ anhyd. AlCl ₃] Benzene B HCN C HOH D The structure of D would be

JIPMER 2007 Solution View → 57

Which of the following undergoes nucleophilic substitution exclusively by S _ N 1 mechanism?

JIPMER 2007 Solution View → 58

Phenol and benzoic acid are distinguished by

JIPMER 2005 Solution View → 59

In a set of reaction acetic acid yielded a product 'd'.

NEET 2005 Solution View → 60

Which of the following has the maximum acidic strength ?

JIPMER 2004 Solution View → 61

CH ₃ COOH PBr ₂ CH ₂ BrCOOH This reaction is called

JIPMER 2004 Solution View → 62

The OH group of an alcohol or the COOH group of a carboxylic acid can be replaced by - Cl using:

NEET 2004 Solution View → 63

o -Toluic acid on reaction with Br ₂+ Fe gives

NEET 2004 Solution View → 64

Phospholipids are esters of glycerol with

NEET 2003 Solution View → 65

In the above reaction product ' P ' is:

NEET 2002 Solution View → 66

In the following reaction order, B is

NEET 2001 Solution View → 67

Strongest acid among the following is

NEET 2001 Solution View → 68

What type of compound is formed when Grignard reagents react with carbon dioxide and mineral acid is added?

NEET Solution View → 69

What is the usual product of the oxidation of toluene and its derivatives using strong oxidising agents?

NEET Solution View → 70

What is the expected effect of resonance on the acidity of carboxylic acids?

NEET Solution View → 71

What is the main reason for the lower electrophilicity of the carboxylic carbon in carboxylic acids?

NEET Solution View → 72

Why is thionyl chloride (SOCl 2 ) preferred for the reaction involving carboxylic acids and chlorine atom replacement?

NEET Solution View → 73

What chemical reactions can replace the hydroxyl group of carboxylic acids with a chlorine atom?

NEET Solution View → 74

What is the name of the reaction in which alkali metal salts of carboxylic acids undergo electrolysis to form hydrocarbons?

NEET Solution View → 75

What is the result of hydrolyzing anhydrides with water?

NEET Solution View → 76

What structural feature in carboxylic acids contributes to their resonance stabilization of the carboxylic carbon?

NEET Solution View → 77

Which reagents are NOT typically used to oxidize alkylbenzenes to aromatic carboxylic acids?

NEET Solution View → 78

What functional group characterizes carboxylic acids?

NEET Solution View → 79

What is the primary use of ethanoic acid in the food industry?

NEET Solution View → 80

What is the product formed when toluene or substituted toluene is treated with chromic oxide in acetic anhydride?

NEET Solution View → 81

What is the immediate product formed when Grignard reagents react with carbon dioxide?

NEET Solution View → 82

What type of reaction is the decarboxylation of carboxylic acids?

NEET Solution View → 83

What is the role of mineral acid in the preparation of carboxylic acids from Grignard reagents and carbon dioxide?

NEET Solution View → 84

How is the strength of an acid generally indicated for convenience?

NEET Solution View → 85

What are esters and anhydrides considered in relation to carboxylic acids?

NEET Solution View → 86

What is the common feature of PCl 5 , PCl 3, or SOCl 2 in their reactions with carboxylic acids?

NEET Solution View → 87

What functional group characterises carboxylic acids?

NEET Solution View → 88

What is the primary role of the carboxyl group in electrophilic substitution reactions of aromatic carboxylic acids?

NEET Solution View → 89

What is the role of red phosphorus in the Hell-Volhard-Zelinsky reaction?

NEET Solution View → 90

How many times greater is the number of carbon atoms in the hydrocarbons formed in Kolbe electrolysis compared to the alkyl group of the carboxylic acid?

NEET Solution View → 91

What is required for the decarboxylation of carboxylic acids when their sodium salts are heated with soda lime?

NEET Solution View → 92

What is the role of ammonia in the reaction with carboxylic acids?

NEET Solution View → 93

Which products are obtained from the reduction of carboxylic acids using lithium aluminium hydride?

NEET Solution View → 94

What is the composition of the hydrocarbons formed in Kolbe electrolysis in relation to the alkyl group of the carboxylic acid?

NEET Solution View → 95

What are nitriles hydrolyzed into during the preparation of carboxylic acids?

NEET Solution View → 96

What are carboxylic acids esterified with in the presence of a mineral acid catalyst?

NEET Solution View → 97

Which functional group characterises esters?

NEET Solution View → 98

Which type of alkyl groups are oxidized to carboxylic acids when using chromic acid or potassium permanganate?

NEET Solution View → 99

Which reaction converts acid chlorides into carboxylic acids more readily?

NEET Solution View → 100

How does the electrophilicity of the carboxylic carbon compare to the carbonyl carbon in carboxylic acids?

NEET Solution View → 101

Why does sodium borohydride not reduce the carboxyl group in carboxylic acids?

NEET Solution View → 102

What type of substitution reactions do aromatic carboxylic acids undergo?

NEET Solution View → 103

What is the application of esters of benzoic acid in the field of perfumery?

NEET Solution View → 104

In which industries is methanoic acid commonly used?

NEET Solution View → 105

Which functional group is part of the carboxyl group?

NEET Solution View → 106

How do electron donating groups affect the acidity of carboxylic acids?

NEET Solution View → 107

What is the role of alkali metal salts in Kolbe electrolysis?

NEET Solution View → 108

In carboxylic acids, how are the bonds to the carboxyl carbon oriented in terms of their plane arrangement?

NEET Solution View → 109

Why do aromatic carboxylic acids not undergo Friedel-Crafts reactions?

NEET Solution View → 110

What is the name of the reaction in which carboxylic acids with an α-hydrogen are halogenated to form α-halocarboxylic acids?

NEET Solution View → 111

What happens to tertiary alkyl groups during the oxidation of alkylbenzenes to carboxylic acids?

NEET Solution View → 112

Why are carboxylic acids more acidic than phenols?

NEET Solution View → 113

What is the function of sodium benzoate in the food industry?

NEET Solution View → 114

In comparison to alcohols and many simple phenols, where do carboxylic acids rank in terms of acidity?

NEET Solution View → 115

What does the term "decarboxylation" refer to in the context of carboxylic acids?

NEET Solution View → 116

Which carboxylic acid is nearly insoluble in cold water?

NEET Solution View → 117

What is the initial product formed when carboxylic acids react with ammonia?

NEET Solution View → 118

What natural compounds are esters of glycerol and higher members of aliphatic carboxylic acids?

NEET Solution View → 119

Why does the solubility of higher carboxylic acids decrease as the number of carbon atoms in the molecule increases?

NEET Solution View → 120

In which industry is ethanoic acid used as a solvent?

NEET Solution View →
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