Practice Questions

Q46.Which one of the following reactions does not represent correct combination of substrate and product under the given conditions? (1) (2) (3) (4)

Q46.Which statement is NOT correct for p-toluenesulphonyl chloride? (1) It is hinsberg's reagent (2) It is used to distinguish primary and secondary amines. (3) On treatment with secondary amine, it leads to a (4) It does not react with tertiary amine. product, that is soluble in alkali. JEE Main 2022 (26 Jun Shift 2) JEE Main Previous Year Paper

Q46.Hex- 4 -ene- 2 -ol on treatment with PCC gives ' A '. ' A ' on reaction with sodium hypoiodite gives ' B ', which on further heating with soda lime gives ' C '. The compound ' C ' is (1) 2 -pentene (2) proponaldehyde (3) 2 -butene (4) 4 -methylpent- 2 -ene

Q46. Consider the above reaction sequence and identify the product B. (1) (2) (3) (4)

Q46.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 esterification reaction. Choose the most appropriate option (1) Statement I is correct but Statement II is (2) Both Statement I and Statement II are incorrect. incorrect. (3) Both Statement I and Statement II are correct. (4) Statement I is incorrect but Statement II is correct.

Q46.The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to (1) Hyperconjugation in substrate (2) Polarity of solvent (3) Free radical formation (4) Electromeric effect of the substrate

Q46.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 acid immediately below and above it in the series. Statement II : The solubility of monocarboxylic acids in water decreases with increase in molar mass. Choose the most appropriate option : (1) Both Statement I and Statement II are correct. (2) Both Statement I and Statement II are incorrect. (3) Statement I is correct but Statement II is (4) Statement I is incorrect but Statement II is incorrect. correct.

Q46.The intermediate X, in the reaction (1) (2) (3) (4)

Q46. Find out the major product for the above reaction. JEE Main 2022 (28 Jul Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q46.Which of the following conditions or reaction sequence will NOT give acetophenone as the major product? JEE Main 2022 (25 Jun Shift 2) JEE Main Previous Year Paper (1) (a) (2) (a) (b) Na2Cr2O7, H+ (b) PCC, DCM (3) (4)

Q46. Consider the above reaction and predict the major product. (1) (2) (3) (4)

Q47. Consider the above reaction, the product A and product B respectively are (1) (2) (3) (4)

Q47.In the following reaction : JEE Main 2022 (25 Jun Shift 1) JEE Main Previous Year Paper The compounds A and B respectively are (1) (2) (3) (4)

Q47.Among the following structures, which will show the most stable enamine formation? (Where Me is −CH3 ) JEE Main 2022 (26 Jun Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q47.Identify the major product A and B for the below given reaction sequence. JEE Main 2022 (28 Jul Shift 1) JEE Main Previous Year Paper ​ (1) (2) (3) (4)

Q47.The products formed in the following reaction, A and B are ​ JEE Main 2022 (26 Jul Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q47. CH3 MgBr H3O+ Zn−Hg−−−CH3 −CH2 −CN → A → B → C. The correct structure of C is Ether HCl JEE Main 2022 (25 Jul Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4) CH3 −CH2 −CH = CH2

Q47.Identify the major product formed in the following sequence of reactions : (1) (2) (3) (4)

Q47. Identify ' Z' among the following (1) (2) (3) (4)

Q47.Given below are two statements : Statement - I : In Hofmann degradation reaction, the migration of only an alkyl group takes place from carbonyl carbon of the amide to the nitrogen atom. Statement - II : The group is migrated in Hofmann degradation reaction to electron deficient atom. JEE Main 2022 (27 Jun Shift 1) JEE Main Previous Year Paper In the light of the above statements, choose the most appropriate answer from the options given below (1) Both Statement I and Statement II are correct. (2) Both Statement I and Statement II are incorrect. (3) Statement I is correct but Statement II is (4) Statement I is incorrect but Statement II is incorrect. correct.

Q47.Hydrolysis of which compound will give carbolic acid? (1) Cumene (2) Benzenediazonium chloride (3) Benzal chloride (4) Ethylene glycol ketal

Q47.Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Aniline on nitration yields ortho, meta & para nitro derivatives of aniline. Reason R : Nitrating mixture is a strong acidic mixture. In the light of the above statements, choose the correct answer from the options given below (1) Both A and R are true and R is the correct (2) Both A and R are true but R is NOT the correct explanation of A explanation of A (3) A is true but R is false (4) A is false but R is true

Q47.Match List-I with List-II List-I List-II A Benzenesulphonyl chloride I Test for primary amines B Hoffmann bromamide reaction II Anti Saytzeff C Carbylamine reaction III Hinsberg reagent D Hoffmann orientation IV Known reaction of Isocyanates. Choose the correct answer from the options given below (1) A −IV, B −III, C −II, D −I (2) A −IV, B −II, C −I, D −III (3) A −III, B −IV, C −I, D −II (4) A −IV, B −III, C −I, D −II

Q47.With respect to the following reaction, consider the given statements: (A) o -Nitroaniline and p -nitroaniline are the predominant products. (B) p -Nitroaniline and m -nitroaniline are the predominant products. (C) HNO3 acts as an acid. (D) H2 SO4 acts as an acid. JEE Main 2022 (28 Jun Shift 2) JEE Main Previous Year Paper Choose the correct option. (1) (A) & (C) are correct statements. (2) (A) & (D) are correct statement. (3) (B) & (D) are correct statements. (4) (B) & (C) are correct statements.

Q47.The conversion of propan- 1 -ol to n-butylamine involves the sequential addition of reagents. The correct sequential order of reagents is (1) (i) SOCl2 (2) (i) HCl (ii) KCN (ii) H2/ Ni, Na(Hg)/C2H5 OH (iii) H2/ Ni, Na(Hg)/C2H5 OH (3) (i) SOCl2 (4) (i) HCl (ii) KCN (ii) CH3 NH2 (iii) CH3 NH2