Practice Questions

Q46.In alkaline medium. MnO−4 oxidises I− to (1) IO−4 (2) IO− (3) I2 (4) IO−3 JEE Main 2024 (29 Jan Shift 1) JEE Main Previous Year Paper

Q46.The correct order of ligands arranged in increasing field strength. (1) F−< Br−< I−< NH3 (2) Br−< F−< H2O < NH3 (3) H2O < −OH < CN−< NH3 (4) Cl−< −OH < Br−< CN−

Q46.The correct statements from the following are: A. The strength of anionic ligands can be explained by crystal field theory. B. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds. C. The hybridization involved in formation of [Ni ( CN ) 4] 2 – complex is dsp2. D. The number of possible isomer(s) of cis-[PtCl2 ( en ) 2] 2 + is one Choose the correct answer from the options given below: (1) A, D only (2) A, C only (3) B, D only (4) B, C only

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

Q46.Yellow compound of lead chromate gets dissolved on treatment with hot NaOH solution. The product of lead formed is a : (1) Tetraanionic complex with coordination number (2) Neutral complex with coordination number four six (3) Dianionic complex with coordination number six (4) Dianionic complex with coordination number four

Q46. The major products formed : A and B respectively are: JEE Main 2024 (06 Apr Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q46.If an iron (III) complex with the formula [Fe(NH3)x(CN)y]− has no electron in its eg orbital, then the value of x + y is JEE Main 2024 (04 Apr Shift 2) JEE Main Previous Year Paper (1) 4 (2) 5 (3) 6 (4) 3

Q46.The coordination geometry around the manganese in decacarbonyldimanganese0 (1) Octahedral (2) Trigonal bipyramidal (3) Square pyramidal (4) Square planar

Q46.The metal atom present in the complex MABXL (where A, B, X and L are unidentate ligands and M is metal) involves sp3 hybridization. The number of geometrical isomers exhibited by the complex is: (1) 2 (2) 0 (3) 4 (4) 3

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.Following is a confirmatory test for aromatic primary amines. Identify reagent (A) and (B) JEE Main 2024 (30 Jan Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

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.Identify B formed in the reaction. excess NH3 NaOH Cl - CH24 - Cl → A → B + H2O + NaCl JEE Main 2024 (27 Jan Shift 2) JEE Main Previous Year Paper (1) (2) H2 N - CH24 - NH2 (3) + (4) -ClH3N+ - CH24 - NH3Cl-

Q47.Identify the name reaction. (1) Stephen reaction (2) Etard reaction (3) Gatterman-koch reaction (4) Rosenmund reduction

Q47.Identify the major products A and B respectively in the following set of reactions. (1) (2) (3) (4)

Q47.Which one the following compounds will readily react with dilute NaOH ? (1) C2H5OH (2) C6H5OH (3) C6H5CH2OH (4) (CH3)3COH

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

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.Phenolic group can be identified by a positive: (1) Phthalein dye test (2) Lucas test (3) Tollen’s test (4) Carbylamine test

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