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JEE Carboxylic Acid Derivatives PYQs with Solutions

278 previous year questions from Carboxylic Acid Derivatives (JEE Main & Advanced Chemistry) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

278 questionsChemistry2002–2026Answers + solutions

About Carboxylic Acid Derivatives PYQs

Carboxylic Acid Derivatives has 278 previous year questions in the Quantrex Academy JEE Main & Advanced Chemistry bank. The 220 questions in this list come from JEE Main (74), NTA Abhyas JEE Main (63), 99 Percentile Qs Bank for JEE Main (39) and 3 other sources, spanning 2002 to 2026. Each question opens on its own page with the options, the correct answer and the worked solution where available.

Questions by year (this list)

  • 2026: 4
  • 2025: 10
  • 2024: 7
  • 2023: 8
  • 2022: 9
  • 2021: 12
  • 2020: 67
  • 2019: 15
  • 2018: 2
  • 2016: 1
  • 2015: 1
  • 2014: 1

Carboxylic Acid Derivatives questions with solutions

1

The sum of total number of carbonyl groups ( >C=O ) present in the major products X and Y in the following reactions is ____.

JEE Advanced 2026 Solution
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2

Complete the following reaction sequence and give the name of major product 'P'. CH_3-CH_2-C≡ N [(ii) H_3O^+] (i) OH^-/H_2O/Δ [(iv) H_2O] (iii) Cl_2/Red P P (Major product)

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3

The descending order of acidity among the following compounds is: A. Phenol B. 4 -nitrophenol C. 4 -methoxyphenol D. 4 -nitrobenzoic acid E. Benzoic acid Choose the correct answer

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4

The correct order of acidic strength of the major products formed in the given reactions, is : A. B. CH_ 3 CH_ 2 CHO [Δ] [Ag(NH_ 3 )_ 2 ]^ + , OH^ - [B] C. CH_ 4 +O_ 2 [ (ii) Na_

JEE Main 2026 Solution
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5

Monocyclic compounds P, Q, R and S are the major products formed in the reaction sequences given below. The product having the highest number of unsaturated carbon atom(s) is-

JEE Advanced 2025 Solution
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6

The correct reaction/reaction sequence that would produce a dicarboxylic acid as the major product is

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7

Mixture of 1 g each of chlorobenzene, aniline and benzoic acid is dissolved in 50 mL ethyl acetate and placed in a separating funnel, 5 M NaOH ( 30 mL) was added in the same

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8

Which of the following compounds is least likely to give effervescence of CO_2 in presence of aq. NaHCO_3 ?

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9

The least acidic compund, among the following is :

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10

Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product ? (A) R-C ≡ N [ mild condition ] (i) H^ + / H_2 O (B) R-MgX [

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11

Consider the following molecules : The correct order of rate of hydrolysis is :

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12

The total number of compounds from below when treated with hot KMnO_4 giving benzoic acid is :

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13

The compounds that produce CO_2 with aqueous NaHCO_3 solution are: A. B. C. D. E. Choose the correct answer from the options given below:

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14

A compound ' X^ absorbs 2 moles of hydrogen and ' X^ upon oxidation with KMnO_4 H^ + gives The total number of σ bonds present in the compound ' X^ is______

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15

In the following reaction sequence, the major product P is formed. Glycerol reacts completely with excess P in the presence of an acid catalyst to form Q . Reaction of Q with

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16

What is the structure of C

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17

Identify the product \((P)\) in the following reaction:

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18

Major product \(B\) of the following reaction has _______ \(π\)-bond.

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19

The product (C) in the following sequence of reactions has ______ \(π\) bonds.

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20

Identify major product ‘ P ’ formed in the following reaction.

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21

The azo-dye (Y) formed in the following reactions is Sulphanilic acid + NaNO _ 2 + CH _ 3 COOH → X

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22

In the following reactions, P, Q, R , and S are the major products. The correct statement(s) about P, Q, R , and S is(are)

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23

Consider the following reaction scheme and choose the correct option(s) for the major products Q, R and S .

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24

Match the reactions (in the given stoichiometry of the reactants) in List-I with one of their products given in List-II and choose the correct option. List-I List-II (P) P _ 2 O _

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25

The major product ‘ P ’ formed in the following sequence of reactions is

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26

In the reaction given below The product ‘ X ’ is :

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27

Major product ' P ' formed in the following reaction is Major product

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28

In a reaction reagents ‘ X ’ and ‘ Y ’ respectively are:

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29

A trisubstituted compound ' A ', C _ 10 H _ 12 O _ 2 gives neutral FeCl _ 3 test positive. Treatment of compound ' A ' with NaOH and CH _ 3 Br gives C _ 11 H _ 14

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30

Considering the reaction sequence given below, the correct statement(s) is(are)

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31

Find out the major product for the above reaction.

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32

Consider the above reaction and predict the major product.

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33

Two isomers (A) and (B) with Molar mass 184g / mol and elemental compositio C, 52 . 2 % ; H, 49 % and Br42 . 9 % gave benzoic acid and p - bromobenzoic acid, respectively on

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34

In Friedel-Crafts alkylation of aniline, one gets:

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35

Given below are two statements : Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution. Statement II : Electron withdrawing

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36

Decarboxylation of all six possible forms of diaminobenzoic acids C _ 6 H _ 3 ( NH _ 2 ) _ 2 COOH yields three products A, B and C . Three acids give a product ' A ', two

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37

The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is

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38

Two statements are given belwo : Statement I : The melting point of monocarboxylic acid with even number of carbon atoms is higher than that of with odd number of carbon atoms

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39

In the following sequence of reactions a compound A, (molecular formula C _ 6 H _ 12 O _ 2 ) with a straight chain structure gives a C _ 4 carboxylic acid. A is : A LiAlH _ 4 H _

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40

Which one of the following reactions will not yield propanoic acid?

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41

Match List - I with List - II. List - I (Chemical Reaction) List - II (Reagent used) a CH _ 3 COOCH _ 2 CH _ 3 → CH _ 3 CH _ 2 OH i CH _ 3 MgBr / H _ 3 O ^ + (one equivalent) b CH

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42

The major product formed in the following reaction is:

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43

The correct sequential addition of reagents in the preparation of 3 - nitrobenzoic acid from benzene is:

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44

Maleic anhydride Maleic anhydride can be prepared by :

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45

The correct order of their reactivity towards hydrolysis at room temperature is:

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46

In the above reaction, the reagent " A " is :

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47

The product " P " in the above reaction is :

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48

What is ' X ' in the given reaction?

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49

The number of compound/s given below which contain/s - COOH group is ___ . (Integer answer) (A) Sulphanilic acid (B) Picric acid (C) Aspirin (D) Ascorbic acid

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50

Which one of the following reactions will not form acetaldehyde?

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51

Which of the following derivatives of alcohols is unstable in an aqueous base?

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52

[P] on treatment with Br _ 2 / FeBr _ 3 in CCl _ 4 produced a single isomer C _ 8 H _ 7 O _ 2 Br wile heating [P] with sodalime gives toluene. The compound [P] is:

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53

An organic compound [A], molecular formula C _ 10 H _ 20 O _ 2 was hydrolyzed with dilute sulphuric acid to given a carboxylic acid [B] and an alcohol [C]. Oxidation of [C] with

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54

The most suitable reagent for the given conversion is:

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55

An ester A(C _ 4 H _ 8 O _ 2 ), on treatment with excess methyl magnesium chloride followed by acidification, gives an alcohol B as the sole organic product. Alcohol B, on

NTA Abhyas JEE Main 2020 Solution
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56

Which of the following compound is not formed in haloform reaction?

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57

In the given reaction R - CH_ 2 - COOH Red P+Br_ 2 → A NH_ 3 → Alanine The name of I^ st reaction and group R is -

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58

Identify the product of above higher esterification reaction.

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59

Which of the acids cannot be prepared by grignard reagent

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60

How many of the following acids will show higher reactivity towards esterification reaction as compared to acetic acid?

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61

In the reaction, CH _ 3 COOH LiAlH _ 4 → (A) I _ 2 + NaOH → (B) → _ Δ ^ Ag(dust) (C) . The final product (C) is&

NTA Abhyas JEE Main 2020 Solution
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62

Compound C in above reaction sequence is

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63

The decreasing order of rate of reaction for the following compounds towards S _ N 2Th (bimolecular nucleophilic substitution with tetrahedral intermediate) reaction is (i)& (ii)&

NTA Abhyas JEE Main 2020 Solution
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64

What is the final product of following reactions?

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65

Which reagent can be used to convert a carboxylic acid chloride into a ketone?

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66

The number of π bonds in the major product will be _____.

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67

Which of the following on treatment with hot concentrated acidified KMnO _ 4 gives 2-methylhexane -1,6-dioic acid as the only organic product?

NTA Abhyas JEE Main 2020 Solution
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68

The total number of carboxylic acid groups in the product P is

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69

CH _ 3 CCl _ 3 hydrolysis → acid-2 Correct answer is

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70

Which of the following has highest K _ a value?

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71

The correct order of acidic strength of the following is (I) Oxalic acid HOOC - COOH (II) Malonic acid HOOC - C H _ 2 - COOH (III) Succinic acid HOOC - (C H _ 2 ) _ 2 - COOH (IV)

NTA Abhyas JEE Main 2020 Solution
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72

What represents the best method for converting a carboxylic acid to an aldehyde?

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73

What are the constituent amines formed when the mixture of (a) and (b) undergoes Hofmann bromamide degradation?

NTA Abhyas JEE Main 2020 Solution
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74

The reaction between an alcohol and an acid with the elimination of water molecule is called

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75

Name the end product in the following series of reaction. CH_ 3 COOH → _ Δ ^ NH_ 3 A → _ Δ ^ P _ 4 O _ 10 B

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76

Benzamide on reaction with POC l_ 3 gives

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77

RC H _ 2 OH → _ ^ KMn O _ 4 / OH^ − P. What is the compound P?

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78

Rearrangement of an oxime to an amide in the presence of a strong acid is called

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79

Consider the following sequence of reactions. The final product C is

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80

CH _ 3 CH _ 2 COOH ⟶ _ red P ^ Cl 2 Α alc.KOH ⟶ Β What is B ?

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81

The total number of carboxylic acid groups in the product P is

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82

Which of the following represents the correct order of the activity in the given compounds?

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83

Malonic acid P _ 2 O _ 5 → _ 150 ^ o C Fouls mell(A) 200 ^ o C → (B) + Carbon The total number of sigma and Pi bonds present in compound A are:

NTA Abhyas JEE Main 2020 Solution
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84

Identify A and B in the reaction given below: Ethanenitrile → _ aq .H_ 2 SO_ 4 ^ Hydrolysis A → _ Sodalime^ Decarboxylation

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85

An organic compound A upon reacting with N H _ 3 gives B. On heating, B gives C. C in presence of KOH reacts with B r _ 2 to give C H _ 3 C H _ 2 N H _ 2 . A is

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86

Compound A, C _ 8 H _ 9 Br , gives a white precipitate when warmed with alcoholic AgN O _ 3 . Oxidation of A gives an acid B, C _ 8 H _ 6 O _ 4 . B easily forms anhydride on

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87

Identify the correct pathway to convert propanoic acid to ethylamine. The reagent represented by A, B and C are C H _ 3 C H _ 2 COOH A → X B → Y C → C H _ 3 C H _ 2 N H _ 2

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88

Which of the following reactions does not occur?

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89

The compound that undergoes decarboxylation most readily under mild condition is

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90

In which of the following reaction C O _ 2 (carbon dioxide) is not released?

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91

O | | C - NH_ 2 P _ 2 O _ 5 → A (i)CH_ 3 MgBr(ii) H _ 3 O^ + → B (i) I _ 2 + Ca ( OH ) _ 2 (ii) H _ 2 O → C; Product is

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92

Benzoyl chloride is prepared from benzoic acid by

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93

Which of the following is most reactive towards nucleophilic substitution reaction?

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94

If the number of σ and π bonds in vinyl acetate are x and y respectively. What is the sum of x + y?

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95

Identify the final product (Z) in the following sequence of reactions. C _ 6 H _ 5 COOH (i)LiAl H_ 4 (ii)PB r_ 3 → (X) KCN → (Y) LiAl H _ 4 → (Z)

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96

A compound with molecular formula C _ 4 H _ 10 O _ 3 in converted by the action of acetyl chloride to a compound of molecular mass 190. The original compound ( C _ 4 H _ 10 O _ 3

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97

Consider the following acids 1. MeC H _ 2 COOH 2. M e _ 2 CHCOOH 3. M e _ 3 CCOOH 4. E t _ 3 CCOOH Correct order of the rate of esterification of these acids with MeOH is

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98

Give the product when an excess of PhMgBr / H^ + reacts with dimethyl carbonate (C H _ 3 OCOOC H _ 3 ) ?

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99

The compound 'A' is

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100

Match list I with list II and select the correct answer using the codes given below the lists. & List I (Reactions) & List II (Products) ( p ) C H _ 2 = CHCOOH + H _ 2 / Ni → 1.

NTA Abhyas JEE Main 2020 Solution
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101

Total number of enol possible for the compound formed during given reaction will be (including stereoisomer) CH _ 3 MgBr _ (1equivalent) + CH _ 3 CH _ 2 COCl →

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102

The heating of oxime of acetone in presence of conc. H _ 2 S O _ 4 to form N-methyl ethanamide is called

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103

Compound (A) 2molof HIO_ 4 → mol of glyoxalic acid. The compound 'A' is

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104

Which of the following functional groups is generally least reactive towards nucleophilic substitution reactions?

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105

In the given reaction C H _ 3 - C H _ 2 COOH (i)C H _ 3 Li(excess)(ii) H _ 3 O ^ ⊕ → [X] [X] will be

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106

An organic acid (A) reacts with conc. H _ 2 S O _ 4 to give a neutral oxide (B), acidic oxide (C) and a diatomic oxide (D) . When (D) reacts with chlorine gas, a poisonous gas (E)

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107

The Compound (A) and (B) in the equation given above are

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108

The product (A) of the following reaction

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109

Consider the following conversion: Amongst the following, how many methods can be used in any one of steps involved in the mentioned conversion? i. Hoffmann bromamide degradation

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110

C _ 2 H _ 2 → _ H _ 2 SO _ 4 ^ 1% Hg _ 2 (OH) _ 2 A [O] → B, , B is

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111

Bouveault-Blanc reduction reaction involves:

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112

→ _ Δ ( n ) moles of C O _ 2 evolved during given reaction? What is the value of 'n' here

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113

Arrange reactivity of given compounds in decreasing order for hydrolysis reaction? ( 1 ) ( 2 ) ( 3 ) ( 4 ) Select the correct answer from the codes given below:

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114

Identify the final product in the given sequence of reaction CH_ 3 COOH LiAIH_ 4 → (A) I _ 2 +NaOH → (B)+Sodium salt Ag(Dust) → (C)

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115

Reaction of ester with Grignard reagent give rise to

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116

In the given reaction CH _ 3 - COOH→ array ll (ii) NaCN ( iii ) H _ 2 O / H^ ⊕ \ array (i) Red - P + Br _ 2 (X) 'X' will be

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117

Name the end product in the following series of reactions C _ 6 H _ 5 COOH N H _ 3 → P Δ → Q P _ 2 O _ 5 → R LiAl H _ 4 → S

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118

Which of the following reactions produce(s) propane as a major product?

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119

The correct order of acid strength of the following carboxylic acids is -

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120

The major product of the following reaction

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