Practice Questions

Q46.Match List I with List II List - I (Test) List - II (Observation) A. Br2 water test I. Yellow orange or orange red precipitate formed B. Ceric ammonium nitrate test II. Reddish orange colour disappears Choose C. Ferric chloride test III. Red colour appears D. 2, 4 - DNP test IV. Blue, Green, Violet or Red colour appear the correct answer from the options given below: (1) A-III, B-IV, C-I, D-II (2) A-I, B-II, C-III, D-IV (3) A-IV, B-I, C-II, D-III (4) A-II, B-III, C-IV, D-I

Q46.Which of the following reaction is correct? (1) (2) (3) (4) C2H5 CONH2 + Br2 + NaOH →C2H5 CH2 NH2 + Na2 CO3 + NaBr + H2O

Q46.Identify the correct set of reagents or reaction conditions ' X ' and ' Y ' in the following set of transformation (1) X = dil.aq. NaOH, 20∘C, Y = Br2/CHCl3 (2) X = conc.alc. NaOH, 80∘C, Y = Br2/CHCl3 (3) X = dil.aq. NaOH, 20∘C, Y = HBr /acetic (4) X = conc.alc. NaOH, 80∘C, Y = HBr/ acetic acid acid

Q46.The correct order of reactivity in electrophilic substitution reaction of the following compounds is: (1) B > C > A > D (2) D > C > B > A (3) A > B > C > D (4) B > A > C > D

Q47. Identify the product (A) in the following reaction. (1) (2) (3) (4)

Q47.Given below are two statements: Statement - I: High concentration of strong nucleophilic reagent with secondary alkyl halides which do not have bulky substituents will follow SN2 mechanism. Statement - II: A secondary alkyl halide when treated with a large excess of ethanol follows SN1 mechanism. In the the light of the above statements, choose the most appropriate from the questions given below: (1) Statement I is true but Statement II is false. (2) Statement I is false but Statement II is true. (3) Both statement I and Statement II are false. (4) Both statement I and Statement II are true.

Q47.Identify A and B in the following sequence of reaction (1) (2) (3) (4)

Q47.Consider the following complex ions P = [FeF6]3– , Q = [V(H2O) 6]2+ , R = [Fe(H2O)6]2+ The correct order of the complex ions, according to their spin only magnetic moment values (in B.M.) is : JEE Main 2024 (27 Jan Shift 1) JEE Main Previous Year Paper (1) R < Q < P (2) R < P < Q (3) Q < R < P (4) Q < P < R

Q47.The product A formed in the following reaction is: JEE Main 2024 (29 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q47.Which of the following compound can give positive iodoform test when treated with aqueous KOH solution followed by potassium hypoiodite. (1) (2) (3) (4) CH3CH2CH2CHO

Q47.The number of unpaired d-electrons in [Co(H2O)6]3+ is (1) 2 (2) 1 (3) 0 (4) 4

Q47.The final product A , formed in the following multistep reaction sequence is: (1) (2) (3) (4)

Q47.In which one of the following metal carbonyls, CO forms a bridge between metal atoms? (1) [Co2(CO)8] (2) [Mn2(CO)10] (3) [Os3(CO)12] (4) [Ru3(CO)12]

Q47.Identify the major product in the following reaction. (1) (2) (3) (4)

Q47.In Reimer - Tiemann reaction, phenol is converted into salicylaldehyde through an intermediate. The structure of intermediate is _____ (1) (2) (3) (4)

Q48. (Test) (Identification) (A) Bayer's test MARKS (I) Phenol VIARKS Match List - I with List - II. (B) Ceric ammonium nitrate test (II) Aldehyde (C) Phthalein dye test R K (III) Alcoholic-OH group (D) Schiff's test (IV) Unsaturation Choose the correct answer from the options given below : (1) (A)-(IV), (B)-(III), (C)-(I), (D)-(II) (2) (A)-(II), (B)-(III), (C)-(IV), (D)-(I) (3) (A)-(IV), (B)-(I), (C)-(II), (D)-(III) (4) (A)-(III), (B)-(I), (C)-(IV), (D)-(II) JEE Main 2024 (08 Apr Shift 2) JEE Main Previous Year Paper

Q48. C2H5OH−CH3 −CH2 −CH2 −Br + NaOH → Product 'A' Consider the above reactions, identify product B and product C . (1) B = 1-Propanol C = 2-Propanol (2) B = C = 2-Propanol (3) B = 2-Propanol C = 1-Propanol (4) B = C = 1-Propanol

Q48.CoNH36 3 + and CoF6 3 - are respectively known as: (1) Spin free Complex, Spin paired Complex (2) Spin paired Complex, Spin free Complex (3) Outer orbital Complex, Inner orbital Complex (4) Inner orbital Complex, Spin paired Complex

Q48.In the following sequence of reaction, the major products B and C respectively are : (1) (2) (3) (4)

Q48.Identify compound (Z) in the following reaction sequence. JEE Main 2024 (05 Apr Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q48. Consider the above reaction sequence and identify the major product P . (1) Methoxymethane (2) Methanoic acid (3) Methanal (4) Methane

Q48.Match List-I with List-II. List I (Reaction) List II (Reagent(s)) (A) (I) Na2Cr2O7 / H2SO4 (B) (II) (i) NaOH (ii) CH3Cl (i)NaOH, CHCl3 (C) (III) (ii) NaOH (iii) HCl (i) NaOH (ii) CO2 (D) (IV) (iii) HCl Choose the correct answer from the options given below: (1) (A)-(IV), (B)-(I), (C)-(III), (D)-(II) (2) (A)-(II), (B)-(III), (C)-(I), (D)-(IV) (3) (A)-(II), (B)-(I), (C)-(III), (D)-(IV) (4) (A)-(IV), (B)-(III), (C)-(I), (D)-(II)

Q48.Which among the following aldehydes is most reactive towards nucleophilic addition reactions? JEE Main 2024 (06 Apr Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q48.Identify major product ‘𝑃’ formed in the following reaction. JEE Main 2024 (31 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q48.During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in NH4OH solution when sodium carbonate extract was first acidified with dil. HNO3 and then AgNO3 solution was added. This indicates presence of : (1) Br− (2) I− (3) Cl− (4) CO32− JEE Main 2024 (06 Apr Shift 2) JEE Main Previous Year Paper