Practice Questions

Q54.In the following reaction, ‘ B’ is (1) (2) (3) (4)

Q54.The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement) (1) 1-Bromo- 2 -methylbutane (2) 2-Bromopropane (3) 2-Bromopentane (4) 2-Bromo- 3, 3-dimethylpentane

Q54.In the following reaction (1) (2) (3) (4)

Q54.In the following halogenated organic compounds the one with maximum number of chlorine atoms in its structure is: (1) Chloral (2) Gammaxene (3) Chloropicrin (4) Freon- 12

Q55.Identify the correct order for the given property for following compounds Choose the correct answer from the option given below :- (1) (B), (C) and (D) only (2) (A), (C) and (E) only (3) (A), (C) and (D) only (4) (A), (B) and (E) only

Q55.Find out the major product from the following reaction. JEE Main 2023 (06 Apr Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q55.In the reaction given below ′B′ is: JEE Main 2023 (13 Apr Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q55. A in the above reaction is : JEE Main 2023 (12 Apr Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q55.Choose the halogen which is most reactive towards SN1 reaction in the given compounds (A, B, C & D) A. B. C. D. (1) A −Br(b); B −I(a); C −Br(a); D −Br(a) (2) A −Br(b); B −I(b); C −Br(b); D −Br(b) (3) A −Br(a); B −I(a); C −Br(b); D −Br(a) (4) A −Br(a); B −I(a); C −Br(a); D −Br(a) JEE Main 2023 (08 Apr Shift 1) JEE Main Previous Year Paper

Q55.Find out the major product for the following reaction JEE Main 2023 (29 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q55.The correct order in aqueous medium of basic strength in case of methyl substituted amines is: JEE Main 2023 (25 Jan Shift 1) JEE Main Previous Year Paper (1) Me2 NH > MeNH2 > Me3 N > NH3 (2) Me2 NH > Me3 N > MeNH2 > NH3 (3) NH3 > Me3 N > MeNH2 > Me2 NH (4) Me3 N > Me2 NH > MeNH2 > NH3

Q55.Find out the major products from the following reactions. JEE Main 2023 (24 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q55.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: (1) (2) (3) (4)

Q56.The magnetic moment is measured in Bohr Magneton (BM). Spin only magnetic moment of Fe in [Fe (H2O)6]3+ and [Fe (CN)6]3− complexes respectively is: (1) 6. 92 B. M. in both (2) 3. 87 B. M. and 1. 732 B. M. (3) 5. 92 B. M. and 1. 732 B. M. (4) 4. 89 B. M. and 6. 92 B. M.

Q56.The major product formed in the following reaction is (1) (2) (3) (4) Q57.. Match List I with List II : List II (Compound with Functional group List I (Reagents used) detected) A.Alkaline solution of copper I. sulphate and sodium citrate B. Neutral FeCl3 solution II. C. Alkaline chloroform solution III. D.Potassium iodide and sodium IV hypochloride Choose the correct answer from the options given below : JEE Main 2023 (08 Apr Shift 1) JEE Main Previous Year Paper (1) A-III, B-IV, C-I, D-II (2) A-III, B-IV, C-II, D-I (3) A-IV, B-I, C-II, D-III (4) A-II, B-IV, C-III, D–I

Q56.The structures of major products A, B and C in the following reaction are sequence. (1) (2) (3) (4)

Q56.Find out the major products from the following reaction sequence. JEE Main 2023 (29 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q56.The increasing order of pKa for the following phenols is (A) 2,4-Dinitrophenol (B) 4-Nitrophenol (C) 2,4,5-Trimethylphenol (D) Phenol (E) 3-Chlorophenol Choose the correct answer from the option given below : JEE Main 2023 (29 Jan Shift 1) JEE Main Previous Year Paper (1) (A), (E), (B), (D), (C) (2) (A), (B), (E), (D), (C) (3) (C), (D), (E), (B), (A) (4) (C), (E), (D), (B), (A)

Q56. In the above reaction, left hand side and right hand side rings are named as ‵A′ and ‵B′ respectively. They undergo ring expansion. The correct statement for this process is: (1) Ring expansion can go upto seven membered (2) Finally both rings will become six membered rings each. (3) Finally both rings will become five membered (4) Only A will become 6 membered. each.

Q56.Decreasing order towards SN1 reaction for the following compounds is: (1) a > c > d > b (2) a > b > c > d (3) b > d > c > a (4) d > b > c > a

Q56.Identify the product formed ( A and E ) (1) (2) (3) (4)

Q56.The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous NaOH is: Choose the correct answer from the options given below: (1) A > B > D > C (2) C > A > D > B (3) D > C > B > A (4) D > B > A > C

Q57.Reaction of propanamide with Br2 / KOH (aq) produces: (1) Ethylnitrile (2) Propylamine (3) Propanenitrile (4) Ethylamine

Q57.An organic compound [A](C4H11 N), shows optical activity and gives N2 gas on treatment with HNO2 . The compound [A] reacts with PhSO2 Cl producing a compound which is soluble in KOH. The structure of A is : JEE Main 2023 (31 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q57.Choose the correct colour of the product for the following reaction. (1) Yellow (2) White (3) Red (4) Blue