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Aldehydes Ketones and Carboxylic Acids

249 questions · Chemistry · JEE Main
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Aldehydes Ketones and Carboxylic Acids

249 questions · Chemistry · JEE Main

  1. Given below are two statements: Statement I : Vanilin will react with NaOH and also with Tollen's reagent. Statement II : Vanilin will undergo self aldol condensation very easily. In the light of the above statements, choose the most… Includes diagram2025 · 2 Apr · Shift 1 · Q11 · MCQ
  2. An optically active alkyl halide C4​H9​Br[A] reacts with hot KOH dissolved in ethanol and forms alkene [B] as major product which reacts with bromine to give dibromide [C]. The compound [C] is…2025 · 2 Apr · Shift 1 · Q12 · MCQ
  3. Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product ? (A) R−C≡N (i) H+​/H2​O mild condition ​… Includes diagram2025 · 2 Apr · Shift 2 · Q14 · MCQ
  4. Number of molecules from below which cannot give iodoform reaction is : Ethanol, Isopropyl alcohol, Bromoacetone, 2-Butanol, 2-Butanone, Butanal, 2-Pentanone, 3-Pentanone, Pentanal and 3-Pentanol.2025 · 3 Apr · Shift 1 · Q20 · MCQ
  5. The major product (P) in the following reaction is :  Includes diagram2025 · 3 Apr · Shift 2 · Q15 · MCQ
  6. An organic compound (X) with molecular formula C3​H6​O is not readily oxidised. On reduction it gives C3​H8​O(Y) which reacts with HBr to give a bromide (Z)…2025 · 4 Apr · Shift 1 · Q15 · MCQ
  7. Aldol condensation is a popular and classical method to prepare α,β-unsaturated carbonyl compounds. This reaction can be both intermolecular and intramolecular. Predict which one of the following is not a product of…2025 · 4 Apr · Shift 1 · Q7 · MCQ
  8. Which among the following compounds give yellow solid when reacted with NaOI/NaOH ? Choose the correct answer from the options given below : Includes diagram2025 · 4 Apr · Shift 2 · Q5 · MCQ
  9. Identify the structure of the final product (D) in the following sequence of the reactions : Total number of sp2 hybridised carbon atoms in product D is ​. Includes diagram2025 · 7 Apr · Shift 2 · Q25 · Numerical
  10. " P " is an optically active compound with molecular formula C6​H12​O. When ' P ' is treated with 2, 4-dinitrophenylhydrazine, it gives a positive test. However, in presence of Tollens reagent, " P " gives…2025 · 7 Apr · Shift 2 · Q8 · MCQ
  11. When undergoes intramolecular aldol condensation, the major product formed is : Includes diagram2025 · 8 Apr · Shift 2 · Q16 · MCQ
  12. Choose the correct option for structures of A and B, respectively Includes diagram2025 · 8 Apr · Shift 2 · Q20 · MCQ
  13. The compounds which give positive Fehling's test are : Choose the correct answer from the options given below : Includes diagram2025 · 22 Jan · Shift 1 · Q5 · MCQ
  14. Residue (A) + HCl (dil) → Compound (B) Structure of residue (A) and compound (B) formed respectively is : Includes diagram2025 · 22 Jan · Shift 2 · Q16 · MCQ
  15. The major product of the following reaction is : CH3​CH2​CH=O excess HCHO alkali ​ reflux ​ ?2025 · 23 Jan · Shift 1 · Q7 · MCQ
  16. Given below are two statements: Consider the following reaction Statement (I): In the case of formaldehyde is about 2280, due to small substituents, hydration is faster. Statement (II) : In the case of trichloro acetaldehyde is about 2000… Includes diagram2025 · 23 Jan · Shift 2 · Q20 · MCQ
  17. A compound ' X′ absorbs 2 moles of hydrogen and ' X ' upon oxidation with KMnO4​∣H+ gives The total number of σ bonds present in the compound 'X′ ' is ​… Includes diagram2025 · 23 Jan · Shift 2 · Q25 · Numerical
  18. Which of the following arrangements with respect to their reactivity in nucleophilic addition reaction is correct?2025 · 24 Jan · Shift 1 · Q15 · MCQ
  19. Aman has been asked to synthesise the molecule He thought of preparing the molecule using an aldol condensation reaction. He found a few cyclic alkenes in his laboratory. He thought of performing ozonolysis reaction on alkene to produce a… Includes diagram2025 · 24 Jan · Shift 1 · Q17 · MCQ
  20. Match List - I with List - II. Choose the correct answer from the options given below : Includes table Includes diagram2025 · 24 Jan · Shift 2 · Q17 · MCQ
  21. Both acetaldehyde and acetone (individually) undergo which of the following reactions? A. Iodoform Reaction B. Cannizaro Reaction C. Aldol Condensation D. Tollen's Test E. Clemmensen Reduction Choose the correct answer from the options…2025 · 28 Jan · Shift 1 · Q11 · MCQ
  22. The compounds that produce CO2​ with aqueous NaHCO3​ solution are: Choose the correct answer from the options given below: Includes diagram2025 · 28 Jan · Shift 1 · Q12 · MCQ
  23. A molecule ("P") on treatment with acid undergoes rearrangement and gives ("Q"). ("Q") on ozonolysis followed by reflux under alkaline condition gives (" R"). The structure of ("R ") is given below. The structure of ("P") is Includes diagram2025 · 28 Jan · Shift 1 · Q6 · Multiple correct
  24. The total number of compounds from below when treated with hot KMnO4​, giving benzoic acid is: Includes diagram2025 · 28 Jan · Shift 2 · Q12 · MCQ
  25. The product (P) formed in the following reaction is : Includes diagram2025 · 29 Jan · Shift 1 · Q15 · MCQ
  26. In the Claisen-Schmidt reaction to prepare, dibenzalacetone from 5.3 g of benzaldehyde, a total of 3.51 g of product was obtained. The percentage yield in this reaction was ​ %.2025 · 29 Jan · Shift 2 · Q24 · Numerical
  27. Match List - I with List - II. Choose the correct answer from the options given below : Includes table Includes diagram2024 · 1 Feb · Shift 1 · Q19 · MCQ
  28. Identify A and B in the following sequence of reaction Includes diagram2024 · 1 Feb · Shift 1 · Q3 · MCQ
  29. Which among the followng has highest boiling point?2024 · 1 Feb · Shift 2 · Q16 · MCQ
  30. Identify the product in the following reaction: Includes diagram2024 · 4 Apr · Shift 1 · Q10 · MCQ
  31. Given below are two statements : Statements I : Acidity of α-hydrogens of aldehydes and ketones is responsible for Aldol reaction. Statement II : Reaction between benzaldehyde and ethanal will NOT give Cross - Aldol product. In the…2024 · 4 Apr · Shift 1 · Q3 · MCQ
  32. Vanillin compound obtained from vanilla beans, has total sum of oxygen atoms and π electrons is ​.2024 · 4 Apr · Shift 2 · Q28 · Numerical
  33. Identify 'A' in the following reaction : Includes diagram2024 · 5 Apr · Shift 1 · Q16 · MCQ
  34. Consider the given chemical reaction : Product "A" is : Includes diagram2024 · 5 Apr · Shift 2 · Q10 · MCQ
  35. The product C in the following sequence of reactions has ​π bonds. Includes diagram2024 · 5 Apr · Shift 2 · Q22 · Numerical
  36. In the Claisen-Schmidt reaction to prepare 351 g of dibenzalacetone using 87 g of acetone, the amount of benzaldehyde required is ​ g. (Nearest integer)2024 · 5 Apr · Shift 2 · Q27 · Numerical
  37. Identify A and B in the given chemical reaction sequence : Includes diagram2024 · 5 Apr · Shift 2 · Q8 · MCQ
  38. Which among the following aldehydes is most reactive towards nucleophilic addition reactions?2024 · 6 Apr · Shift 1 · Q17 · MCQ
  39. Consider the given reaction, identify the major product P. Includes diagram2024 · 6 Apr · Shift 2 · Q4 · MCQ
  40. Identify the product (P) in the following reaction: Includes diagram2024 · 8 Apr · Shift 1 · Q16 · MCQ
  41. Two moles of benzaldehyde and one mole of acetone under alkaline conditions using aqueous NaOH after heating gives x as the major product. The number of π bonds in the product x is ​.2024 · 8 Apr · Shift 2 · Q26 · Numerical
  42. Identify major product "X" formed in the following reaction : Includes diagram2024 · 9 Apr · Shift 1 · Q5 · MCQ
  43. What is the structure of C? Includes diagram2024 · 9 Apr · Shift 1 · Q8 · MCQ
  44. In the above reaction product 'P' is Includes diagram2024 · 9 Apr · Shift 2 · Q1 · MCQ
  45. Which of the following compounds will give silver mirror with ammoniacal silver nitrate? A. Formic acid B. Formaldehyde C. Benzaldehyde D. Acetone Choose the correct answer from the options given below :2024 · 9 Apr · Shift 2 · Q7 · MCQ
  46. Highest enol content will be shown by:2024 · 27 Jan · Shift 1 · Q2 · MCQ
  47. The molecular formula of second homologue in the homologous series of mono carboxylic acids is2024 · 27 Jan · Shift 2 · Q20 · MCQ
  48. From the compounds given below, number of compounds which give positive Fehling's test is ​. Benzaldehyde, Acetaldehyde, Acetone, Acetophenone, Methanal, 4nitrobenzaldehyde, cyclohexane carbaldehyde.2024 · 29 Jan · Shift 1 · Q27 · Numerical
  49. Identify the reagents used for the following conversion Includes diagram2024 · 29 Jan · Shift 2 · Q11 · MCQ
  50. The total number of 'Sigma' and 'Pi' bonds in 2-formylhex-4-enoic acid is ​.2024 · 29 Jan · Shift 2 · Q28 · Numerical
  51. Structure of 4-Methylpent-2-enal is :2024 · 30 Jan · Shift 1 · Q20 · MCQ
  52. This reduction reaction is known as: Includes diagram2024 · 30 Jan · Shift 1 · Q5 · MCQ
  53. Salicylaldehyde is synthesized from phenol, when reacted with2024 · 30 Jan · Shift 2 · Q14 · MCQ
  54. m-chlorobenzaldehyde on treatment with 50% KOH solution yields :2024 · 30 Jan · Shift 2 · Q15 · MCQ
  55. The product of the following reaction is P. The number of hydroxyl groups present in the product P is ​. Includes diagram2024 · 31 Jan · Shift 1 · Q22 · Numerical
  56. Identify the name reaction. Includes diagram2024 · 31 Jan · Shift 2 · Q14 · MCQ
  57. Identify major product 'P' formed in the following reaction. Includes diagram2024 · 31 Jan · Shift 2 · Q3 · MCQ
  58. Number of isomeric compounds with molecular formula C9​H10​O which (i) do not dissolve in NaOH(ii) do not dissolve in HCl. (iii) do not give orange precipitate with 2,4-DNP (iv) on…2023 · 1 Feb · Shift 1 · Q18 · Numerical
  59. The structures of major products A, B and C in the following reaction are sequence. Includes diagram2023 · 1 Feb · Shift 2 · Q14 · MCQ
  60. In a reaction, reagents 'X' and 'Y' respectively are : Includes diagram2023 · 1 Feb · Shift 2 · Q4 · MCQ
  61. Match List I with List II: Choose the correct answer from the options given below: Includes table Includes diagram2023 · 8 Apr · Shift 1 · Q14 · MCQ
  62. The major product formed in the following reaction is: Includes diagram2023 · 8 Apr · Shift 1 · Q9 · MCQ
  63. The major product 'P' formed in the given reaction is Includes diagram2023 · 10 Apr · Shift 1 · Q4 · MCQ
  64. 'A' and 'B' in the above reactions are: Includes diagram2023 · 11 Apr · Shift 1 · Q2 · MCQ
  65. Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : A solution of the product obtained by heating a mole of glycine with a mole of chlorine in presence of red phosphorous…2023 · 11 Apr · Shift 2 · Q6 · MCQ
  66. In the following reaction 'A' is Includes diagram2023 · 12 Apr · Shift 1 · Q12 · MCQ
  67. The major product 'P' formed in the following sequence of reactions is Includes diagram2023 · 12 Apr · Shift 1 · Q13 · MCQ
  68. The value of x in compound 'D' is ​. Includes diagram2023 · 12 Apr · Shift 1 · Q18 · Numerical
  69. The mass of NH 3​ produced when 131.8 kg of cyclohexanecarbaldehyde undergoes Tollen's test is ​ kg. (Nearest Integer) Molar Mass of C = 12g/mol N = 14g/mol O = 16g/mol2023 · 12 Apr · Shift 1 · Q19 · Numerical
  70. The two products formed in above reaction are - Includes diagram2023 · 12 Apr · Shift 1 · Q3 · MCQ
  71. 'A' in the above reaction is: Includes diagram2023 · 12 Apr · Shift 1 · Q5 · MCQ
  72. In the reaction given below 'A' is Includes diagram2023 · 13 Apr · Shift 1 · Q4 · MCQ
  73. In the above conversion the correct sequence of reagents to be added is Includes diagram2023 · 15 Apr · Shift 1 · Q11 · MCQ
  74. 'R' formed in the following sequence of reactions is : Includes diagram2023 · 24 Jan · Shift 1 · Q7 · MCQ
  75. Compound (X) undergoes following sequence of reactions to give the Lactone (Y). Includes diagram2023 · 24 Jan · Shift 1 · Q9 · MCQ
  76. Identify the product formed (A and E) Includes diagram2023 · 25 Jan · Shift 1 · Q7 · MCQ
  77. 'A' in the given reaction is Includes diagram2023 · 25 Jan · Shift 2 · Q1 · MCQ
  78. Number of compounds giving (i) red colouration with ceric ammonium nitrate and also (ii) positive iodoform test from the following is ​ Includes diagram2023 · 25 Jan · Shift 2 · Q20 · Numerical
  79. Find out the major products from the following reaction sequence. Includes diagram2023 · 29 Jan · Shift 2 · Q15 · MCQ
  80. A trisubstituted compound 'A', C10​H12​O2​ gives neutral FeCl3​ test positive. Treatment of compound 'A' with NaOH and CH3​Br gives C11​H14​O2​…2023 · 30 Jan · Shift 1 · Q19 · Numerical
  81. What is the correct order of acidity of the protons marked A−D in the given compounds ? Includes diagram2023 · 30 Jan · Shift 1 · Q5 · MCQ
  82. Which of the following compounds would give the following set of qualitative analysis ? (i) Fehling's Test : Positive (ii) Na fusion extract upon treatment with sodium nitroprusside gives a blood red colour but not prussian blue.2023 · 30 Jan · Shift 1 · Q7 · MCQ
  83. Number of compounds from the following which will not dissolve in cold NaHCO3​ and NaOH solutions but will dissolve in hot NaOH solution is ​. Includes diagram2023 · 30 Jan · Shift 2 · Q17 · Numerical
  84. Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: can be easily reduced using Zn−Hg/HCl to Reason R:Zn−Hg/HCl… Includes diagram2023 · 30 Jan · Shift 2 · Q2 · MCQ
  85. Consider the following reaction The correct statement for product B is. It is Includes diagram2023 · 31 Jan · Shift 1 · Q3 · MCQ
  86. The number of molecules which gives the haloform test among the following molecules is ​. Includes diagram2023 · 31 Jan · Shift 2 · Q15 · Numerical
  87. Cyclohexylamine when treated with nitrous acid yields (P). On treating (P) with PCC results in (Q). When (Q) is heated with dil. NaOH we get (R) The final product (R) is :2023 · 31 Jan · Shift 2 · Q2 · MCQ
  88. Two statements are given below : 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 acid immediately below and above it in the series. Statement II…2022 · 24 Jun · Shift 1 · Q8 · MCQ
  89. In the given reaction The number of chiral carbon/s in product A is ​. Includes diagram2022 · 25 Jul · Shift 1 · Q20 · Numerical
  90. Which one of the following reactions does not represent correct combination of substrate and product under the given conditions?2022 · 25 Jul · Shift 1 · Q8 · MCQ
  91. CH3​−CH2​−CNEther⟶CH3​MgBr​AH3​O+​BHCl⟶Zn−Hg​C The correct structure of C is2022 · 25 Jul · Shift 2 · Q11 · MCQ
  92. What is the major product of the following reaction? Includes diagram2022 · 25 Jul · Shift 2 · Q9 · MCQ
  93. Which of the following conditions or reaction sequence will NOT give acetophenone as the major product?2022 · 25 Jun · Shift 2 · Q13 · MCQ
  94. The products formed in the following reaction, A and B are Includes diagram2022 · 26 Jul · Shift 1 · Q10 · MCQ
  95. Consider the above reaction and predict the major product. Includes diagram2022 · 26 Jul · Shift 2 · Q9 · MCQ
  96. (C7​H5​O2​)2​ hv​[X]→ 2C6​H5​ + 2CO2​ Consider the above reaction and identify the intermediate 'X'2022 · 26 Jun · Shift 1 · Q7 · MCQ
  97. Which will have the highest enol content?2022 · 26 Jun · Shift 1 · Q9 · MCQ
  98. The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is Includes diagram2022 · 26 Jun · Shift 2 · Q11 · MCQ
  99. The final product 'A' in the following reaction sequence Includes diagram2022 · 26 Jun · Shift 2 · Q12 · MCQ
  100. Oxidation of toluene to benzaldehyde can be easily carried out with which of the following reagents?2022 · 26 Jun · Shift 2 · Q8 · MCQ
  101. Match List - I with List - II. Choose the correct answer from the options given below : Includes table Includes diagram2022 · 27 Jul · Shift 2 · Q10 · MCQ
  102. The spin only magnetic moment of the complex present in Fehling's reagent is ​ B.M. (Nearest integer).2022 · 27 Jul · Shift 2 · Q20 · Numerical
  103. The structure of A in the given reaction is : Includes diagram2022 · 27 Jul · Shift 2 · Q8 · MCQ
  104. 'A' and 'B' respectively are: Includes diagram2022 · 27 Jun · Shift 1 · Q6 · MCQ
  105. Which of the following reactions will yield benzaldehyde as a product? Includes diagram2022 · 27 Jun · Shift 1 · Q8 · MCQ
  106. Find out the major product for the above reaction. Includes diagram2022 · 28 Jul · Shift 2 · Q13 · MCQ
  107. The correct structure of product 'A' formed in the following reaction. is Includes diagram2022 · 28 Jun · Shift 1 · Q8 · MCQ
  108. Isobutyraldehyde on reaction with formaldehyde and K2​CO3​ gives compound 'A'. Compound 'A' reacts with KCN and yields compound 'B', which on hydrolysis gives a stable compound 'C'. The compound 'C' is2022 · 28 Jun · Shift 2 · Q10 · MCQ
  109. Consider the above reaction sequence, the Product 'C' is : Includes diagram2022 · 29 Jul · Shift 1 · Q11 · MCQ
  110. The number of stereoisomers formed in a reaction of (±)Ph(C=O)C(OH)(CN)Ph with HCN is ​. [ where Ph is −C6​H5​…2022 · 29 Jul · Shift 2 · Q22 · Numerical
  111. Correct structure of γ-methylcyclohexane carbaldehyde is2022 · 29 Jul · Shift 2 · Q9 · MCQ
  112. Given below are two statements : Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution. Statement II : Electron withdrawing groups in the carboxylic acid will increase the rate of…2022 · 29 Jun · Shift 1 · Q7 · MCQ
  113. In the given reaction, The number of π electrons present in the product 'P' is ​. Includes diagram2022 · 29 Jun · Shift 2 · Q23 · Numerical
  114. Choose the reaction which is not possible:2022 · 30 Jun · Shift 1 · Q10 · MCQ
  115. Which among the following will be the major product of the given reaction? Includes diagram2022 · 30 Jun · Shift 1 · Q11 · MCQ
  116. A hydrocarbon 'X' is found to have molar mass of 80. A 10.0 mg of compound 'X' on hydrogenation consumed 8.40 mL of H2​ gas (measured at STP). Ozonolysis of compound 'X' yields only formaldehyde and dialdehyde. The total number of…2022 · 30 Jun · Shift 1 · Q22 · Numerical
  117. Consider the given chemical reaction Identify the product P. Includes diagram2022 · 30 Jun · Shift 1 · Q9 · MCQ
  118. Experimentally reducing a functional group cannot be done by which one of the following reagents?2021 · 1 Sep · Shift 2 · Q1 · MCQ
  119. Given below are two statements : Statement I : The nucleophilic addition of sodium hydrogen sulphite to an aldehyde or a ketone involves proton transfer to form a stable ion. Statement II : The nucleophilic addition of hydrogen cyanide to…2021 · 1 Sep · Shift 2 · Q10 · MCQ
  120. In the following sequence of reactions a compound A, (molecular formula C6​H12​O2​) with a straight chain structure gives a C4​ carboxylic acid. A is : Includes diagram2021 · 1 Sep · Shift 2 · Q4 · MCQ
  121. The product ''P'' in the above reaction is : Includes diagram2021 · 16 Mar · Shift 1 · Q1 · MCQ
  122. Assertion A : Enol form of acetone [CH3​COCH3​] exists in < 0.1% quantity. However, the enol form of acetyl acetone [CH3​COCH2​OCCH3​] exists in approximately 15% quantity. Reason R : Enol form of acetyl acetone is stabilized by…2021 · 16 Mar · Shift 1 · Q4 · MCQ
  123. In the above reaction, the reagent ''A'' is : Includes diagram2021 · 16 Mar · Shift 2 · Q11 · MCQ
  124. The product ''A'' in the above reaction is : Includes diagram2021 · 17 Mar · Shift 1 · Q5 · MCQ
  125. Mesityl oxide is a common name of :2021 · 17 Mar · Shift 1 · Q9 · MCQ
  126. The total number of C-C sigma bond/s in mesityl oxide (C6​H10​O) is ​. (Round off to the Nearest Integer).2021 · 17 Mar · Shift 2 · Q20 · Numerical
  127. Considering the above chemical reaction, identify the product "X" : Includes diagram2021 · 18 Mar · Shift 1 · Q12 · MCQ
  128. Consider the above chemical reaction and identify product "A" Includes diagram2021 · 18 Mar · Shift 1 · Q6 · MCQ
  129. Consider the above reaction, the product 'X' and 'Y' respectively are : Includes diagram2021 · 18 Mar · Shift 2 · Q13 · MCQ
  130. In Tollen's test for aldehyde, the overall number of electron(s) transferred to the Tollen's reagent formula [Ag(NH3​)2​]+ per aldehyde group to form silver mirror is ​. (Round off to the Nearest Integer).2021 · 18 Mar · Shift 2 · Q14 · Numerical
  131. Consider the above reaction where 6.1 g of Benzoic acid is used to get 7.8 g of m-bromo benzoic acid. The percentage yield of the product is ​ (Round off to the Nearest Integer). [Given : Atomic masses : C : 12.0… Includes diagram2021 · 18 Mar · Shift 2 · Q17 · Numerical
  132. Which among the above compound/s does/do not form Silver mirror when treated with Tollen's reagent? Includes diagram2021 · 20 Jul · Shift 1 · Q10 · MCQ
  133. The correct order of their reactivity towards hydrolysis at room temperature is : Includes diagram2021 · 20 Jul · Shift 2 · Q16 · MCQ
  134. The major product (P) in the following reaction is : Includes diagram2021 · 20 Jul · Shift 2 · Q3 · MCQ
  135. Which of the following reagent is used for the following reaction ? CH3​CH2​CH3​⟶?​CH3​CH2​CHO2021 · 24 Feb · Shift 1 · Q2 · MCQ
  136. Match List - I and List - II. Choose the correct answer from the options given below : Includes table Includes diagram2021 · 24 Feb · Shift 2 · Q14 · MCQ
  137. Which one of the following carbonyl compounds cannot be prepared by addition of water on an alkyne in the presence of HgSO4​ and H2​SO4​?2021 · 24 Feb · Shift 2 · Q5 · MCQ
  138. Which of the following reagent is suitable for the preparation of the product in the above reaction? Includes diagram2021 · 24 Feb · Shift 2 · Q9 · MCQ
  139. The major product of the following chemical reaction is : Includes diagram2021 · 25 Feb · Shift 1 · Q12 · MCQ
  140. Which one of the following reactions will not form acetaldehyde?2021 · 25 Feb · Shift 1 · Q2 · MCQ
  141. Compound(s) which will liberate carbon dioxide with sodium bicarbonate solution is/are : Includes diagram2021 · 25 Feb · Shift 1 · Q6 · MCQ
  142. The major product of the following reaction is : Includes diagram2021 · 25 Feb · Shift 2 · Q13 · MCQ
  143. 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 acid2021 · 25 Feb · Shift 2 · Q21 · Numerical
  144. Which one of the following compounds will liberate CO2​, when treated with NaHCO3​ ?2021 · 25 Jul · Shift 1 · Q13 · MCQ
  145. Consider the given reaction, the product 'X' is : Includes diagram2021 · 25 Jul · Shift 1 · Q4 · MCQ
  146. Maleic anhydride can prepared by : Includes diagram2021 · 25 Jul · Shift 2 · Q11 · MCQ
  147. [where Et⇒−C2​H5​tBu⇒(CH3​)3​C−] Consider the above reaction sequence, Product "A" and Product "B" formed respectively are : Includes diagram2021 · 25 Jul · Shift 2 · Q12 · MCQ
  148. The correct sequential addition of reagents in the preparation of 3-nitrobenzoic acid from benzene is :2021 · 26 Aug · Shift 1 · Q11 · MCQ
  149. The major products formed in the following reaction sequence A and B are : Includes diagram2021 · 26 Aug · Shift 1 · Q3 · MCQ
  150. Identify A in the following chemical reaction. Includes diagram2021 · 26 Feb · Shift 2 · Q10 · MCQ
  151. 2, 4-DNP test can be used to identify :2021 · 26 Feb · Shift 2 · Q11 · MCQ
  152. Considering the above reaction, the major product among the following is : Includes diagram2021 · 26 Feb · Shift 2 · Q12 · MCQ
  153. Identify A in the given chemical reaction. Includes diagram2021 · 26 Feb · Shift 2 · Q13 · MCQ
  154. The structure of the starting compound P used in the reaction given below is : Includes diagram2021 · 27 Aug · Shift 1 · Q2 · MCQ
  155. Given below are two statements : Statement I : Ethyl pent-4-yn-oate on reaction with CH3​MgBr gives a 3 ∘-alcohol. Statement II : In this reaction one mole of ethyl pent-4-yn-oate utilizes two moles of CH3​MgBr. In the light of…2021 · 27 Aug · Shift 2 · Q2 · MCQ
  156. Which one of the following reactions will not yield propionic acid?2021 · 27 Aug · Shift 2 · Q4 · MCQ
  157. Which one of the following compounds will give orange precipitate when treated with 2, 4-dinitrophenyl hydrazine?2021 · 27 Jul · Shift 1 · Q1 · MCQ
  158. The structure of product C, formed by the following sequence of reactions is : Includes diagram2021 · 31 Aug · Shift 1 · Q13 · MCQ
  159. The structures A and B formed in the following reaction are : [Ph = − C6​H5​] Includes diagram2021 · 31 Aug · Shift 2 · Q3 · MCQ
  160. For the reaction given below :- The compound which is not formed as a product in the reaction is a : Includes diagram2021 · 31 Aug · Shift 2 · Q8 · MCQ
  161. The increasing order of the following compounds towards HCN addition is : Includes diagram2020 · 2 Sep · Shift 1 · Q5 · MCQ
  162. Two compounds A and B with same molecular formula (C3​H6​O) undergo Grignard’s reaction with methylmagnesium bromide to give products C and D. Products C and D show following chemical tests. C and D respectively are : Includes diagram2020 · 2 Sep · Shift 2 · Q11 · MCQ
  163. Arrange the following labelled hydrogens in decreasing order of acidity : Includes diagram2020 · 2 Sep · Shift 2 · Q22 · MCQ
  164. An organic compound [A], molecular formula C10​H20​O2​ was hydrolyzed with dilute sulphuric acid to give a carboxylic acid [B] and an alcohol [C]. Oxidation of [C] with CrO3​ - H2​SO4​ produced [B]. Which of the following…2020 · 3 Sep · Shift 1 · Q15 · Multiple correct
  165. Consider the following molecules and statements related to them : (a) (B) is more likely to be crystalline than (A) (b) (B) has higher boiling point than (A) (c) (B) dissolves more readily than (A) in water Identify the correct option from… Includes diagram2020 · 3 Sep · Shift 2 · Q5 · MCQ
  166. The compound A in the following reaction is : Includes diagram2020 · 3 Sep · Shift 2 · Q6 · MCQ
  167. The increasing order of the reactivity of the following compound in nucleophilic addition reaction is : Propanal, Benzaldehyde, Propanone, Butanone2020 · 3 Sep · Shift 2 · Q8 · MCQ
  168. An organic compound (A) (molecular formula C6​H12​O2​) was hydrolysed with dil. H2​SO4​ to give a carboxylic acid (B) and an alcohol (C). ‘C’ gives white turbidity immediately when treated with anhydrous ZnCl2​ and conc. HCl. The…2020 · 4 Sep · Shift 1 · Q14 · MCQ
  169. [P] on treatment with Br2​/FeBr3​ in CCl4​ produced a single isomer C8​H7​O2​Br while heating [P] with sodalime gave toluene. The compound [P] is2020 · 4 Sep · Shift 1 · Q5 · MCQ
  170. The major product [C] of the following reaction sequence will be : Includes diagram2020 · 4 Sep · Shift 2 · Q15 · MCQ
  171. The increasing order of the acidity of the α-hydrogen of the following compounds is : Includes diagram2020 · 5 Sep · Shift 1 · Q1 · MCQ
  172. Which of the following derivatives of alcohols is unstable in an aqueous base?2020 · 5 Sep · Shift 1 · Q7 · MCQ
  173. In the following reaction sequence the major products A and B are : Includes diagram2020 · 5 Sep · Shift 1 · Q9 · MCQ
  174. The major products of the following reaction are : Includes diagram2020 · 6 Sep · Shift 1 · Q13 · MCQ
  175. Consider the following reactions 'A' is : Includes diagram2020 · 6 Sep · Shift 1 · Q6 · MCQ
  176. The correct match between Item-I (starting material) and Item-II (reagent) for the preparation of benzaldehyde is : Includes table2020 · 6 Sep · Shift 2 · Q1 · MCQ
  177. What is the product of following reaction ? Includes diagram2020 · 7 Jan · Shift 1 · Q6 · MCQ
  178. The predominant intermolecular forces present in ethyl acetate, a liquid, are:2020 · 8 Jan · Shift 1 · Q19 · MCQ
  179. The most suitable reagent for the given conversion is : Includes diagram2020 · 8 Jan · Shift 1 · Q20 · MCQ
  180. An unsaturated hydrocarbon X absorbs two hydrogen molecules on catalytic hydrogenation and also gives following reaction : B(3 - oxo - hexanedicarboxylic acid) X will be :- Includes diagram2020 · 8 Jan · Shift 2 · Q3 · MCQ
  181. Identify (A) in the following reaction sequence : Includes diagram2020 · 9 Jan · Shift 1 · Q1 · MCQ
  182. In the following reaction A is : Includes diagram2020 · 9 Jan · Shift 2 · Q1 · MCQ
  183. Consider the following reactions The mass percentage of carbon in A is ​. Includes diagram2020 · 9 Jan · Shift 2 · Q5 · Numerical
  184. The major product of the following reaction is : Includes diagram2019 · 8 Apr · Shift 1 · Q17 · MCQ
  185. The major product of the following reaction is : Includes diagram2019 · 8 Apr · Shift 1 · Q9 · MCQ
  186. The major product obtained in the following reaction is Includes diagram2019 · 8 Apr · Shift 2 · Q5 · MCQ
  187. The major product of the following reaction is : Includes diagram2019 · 9 Apr · Shift 1 · Q15 · MCQ
  188. p-Hydroxybenzophenone upon reaction with bromine in carbon tetrachloride gives:2019 · 9 Apr · Shift 2 · Q1 · MCQ
  189. The major product of the following reaction is: Includes diagram2019 · 9 Apr · Shift 2 · Q4 · MCQ
  190. In the following reaction Rate of the reaction is the highest for : Includes diagram2019 · 9 Apr · Shift 2 · Q6 · MCQ
  191. The major product in the following reaction is : Includes diagram2019 · 9 Jan · Shift 2 · Q10 · MCQ
  192. The correct match between Item I and Item II is : Includes table2019 · 9 Jan · Shift 2 · Q21 · MCQ
  193. The products formed in the reaction of cumene with O2​ followed by treatment with dil. HCl are :2019 · 9 Jan · Shift 2 · Q4 · MCQ
  194. The major product of the following reaction is : Includes diagram2019 · 9 Jan · Shift 2 · Q9 · MCQ
  195. Major products of the following reaction are : Includes diagram2019 · 10 Apr · Shift 1 · Q16 · MCQ
  196. Compound A(C9​H10​O) shows positive iodoform test. Oxidation of A with KMnO4​/KOH given acid B(C8​H6​O4​). Anhydride of B is used for the preparation of phenolphthalein. Compound A is:2019 · 10 Apr · Shift 2 · Q13 · MCQ
  197. The major product 'Y' in the following reaction is : Includes diagram2019 · 10 Apr · Shift 2 · Q2 · MCQ
  198. The decreasing order of ease of alkaline hydrolysis for the following esters in Includes diagram2019 · 10 Jan · Shift 1 · Q3 · MCQ
  199. Which dicarboxylic acid in presence of a dehydrating agent is least reactive to give an anhydride?2019 · 10 Jan · Shift 1 · Q7 · MCQ
  200. Which is the most suitable reagent for the following transformation ? Includes diagram2019 · 10 Jan · Shift 2 · Q2 · MCQ