Practice Questions

Q44.Arrange the following coordination compounds in the increasing order of magnetic moments. (Atomic numbers: Mn = 25; Fe = 26) A. [FeF6]3− B. [Fe (CN)6]3− C. [MnCl6]3− (high spin) D. [Mn (CN)6]3− Choose the correct answer from the options given below (1) A < B < D < C (2) B < D < C < A (3) A < C < D < B (4) B < D < A < C

Q44. The stable carbocation formed in the above reaction is : (1) (2) ⊕ CH3 CH2 (3) ⊕ (4) CH3 − CH −CH3

Q44.The major product of the following reaction is JEE Main 2022 (27 Jun Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q44. Consider the above reaction sequence, the Product ‘ C’ is (1) (2) (3) (4)

Q44.The total number of acidic oxides from the following list is: NO, N2O, B2O3, N2O5, CO, SO3, P4O10 (1) 5 (2) 4 (3) 3 (4) 6

Q44.Given below are two statements: Statement I : Iron (III) catalyst, acidified K2 Cr2 O7 and neutral KMnO4 have the ability to oxidise I− to I2 independently. Statement II: Manganate ion is paramagnetic in nature and involves pπ −pπ bonding. In the light of the above statements, choose the correct answer from the options. (1) Both statement I and Statement II are ture (2) Both statement I and Statement II are false (3) Statement I is true but Statement II is false (4) Statement I is false but Statement II is true

Q44.Amongst the following, the major product of the given chemical reaction is (1) (2) (3) (4)

Q44.The products obtained from a reaction of hydrogen peroxide and acidified potassium permanganate are (1) Mn4 + , H2O only (2) Mn2 + , H2O only (3) Mn4 + , H2O, O2 only (4) Mn2 + , H2O, O2 only JEE Main 2022 (26 Jul Shift 2) JEE Main Previous Year Paper

Q44. PCl5 is well known but NCl5 is not.Because, (1) N - does not have vacant d-orbital (2) P - does not have 2d orbitals (3) Back bonding in NCl5 is not possible (4) N atom is more electronegative so does not forms 5 bonds

Q44.Consider the following reaction, 1. Cl2 / hv −A → 4 −bromophenylacetic acid 2. CN− 3. H2O/H+/Δ What is A in the above reaction? (1) (2) (3) (4)

Q44.Match List - I with List - II : List-II List-II JEE Main 2022 (24 Jun Shift 1) JEE Main Previous Year Paper (A) [PtCl4]2− (I) sp3 d (B) BrF5 (II) d2 sp3 (C) PCl5 (III) dsp2 (D) [Co (NH3)6]3+ (IV) sp3 d2 Choose the most appropriate answer from the options given below (1) (A) −(II), (B) −(IV), (C) −(I), (D) −(III) (2) (A) −(III), (B) −(IV), (C) −(I), (D) −(II) (3) (A) −(III), (B) −(I), (C) −(IV), (D) −(II) (4) (A) −(II), (B) −(I), (C) −(IV), (D) −(III)

Q44.Most stable product of the following reaction is JEE Main 2022 (25 Jul Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q44.Choose the correct stability order of group 13 elements in their +1 oxidation state. (1) Al < Ga < In < Tl (2) Tl < In < Ga < Al (3) In < Tl < Ga < Al (4) Ga < In < Al < Tl

Q44.The dark purple colour of KMnO4 disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is (1) 5 (2) 1 (3) 7 (4) 2

Q44.The structure of A in the given reaction is ​ JEE Main 2022 (27 Jul Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q44.The final product ' A' in the following reaction sequence (1) (2) (3) (4)

Q44.White precipitate of AgCl dissolves in aqueous ammonia solution due to formation of (1) AgNH34Cl2 (2) AgCl2NH32 (3) AgNH32Cl (4) AgNH3ClCl

Q44. In the given conversion the compound A is (1) (2) (3) (4)

Q44.The major product in the given reaction is JEE Main 2022 (28 Jul Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q44.Match List-I with List-II. List-I List-II A 4NH3g + 5O2g →4NOg + 6H2Og I NOg B N2g + 3H2g →2NH3g II H2SO4l C C12H22O11aq + H2Ol →C6H12O6Glucose + C6H12O6Fructose III Pts D 2SO2g + O2g →2SO3g IV Fes Choose the correct answer from the options given below (1) A - II, B - III, C - I, D - IV (2) A - III, B - II, C - I, D - IV (3) A - III, B - IV, C - II, D - I (4) A - III, B - II, C - IV, D - I

Q44.Which of the following 3d - metal ion will give the lowest enthalpy of hydration ΔhydH when dissolved in water? (1) Cr2 + (2) Mn2 + (3) Fe2 + (4) Co2 +

Q44.The major product (P) in the reaction (1) (2) (3) (4)

Q45. hv (C7H5O2)2 →[X] →2˙C6H5 + 2 CO2 Consider the above reaction and identify the intermediated ' X' (1) (2) (3) (4)

Q45.Compound I is heated with Conc. HI to give a hydroxy compound A which is further heated with Zn dust to give compound B. Identify A and B. ​ (1) (2) (3) (4)

Q45.Two isomers (A) and (B) with Molar mass 184 g/ mol and elemental compositio C, 52. 2%; H, 49% and Br 42. 9% gave benzoic acid and p− bromobenzoic acid, respectively on oxidation with KMnO4 . Isomer ′A′ is optically active and gives a pale yellow precipitate when warmed with alcoholic AgNO3 . Isomer ′A′ and ′B′ are, respectively : (1) (2) (3) (4) H3C −CHBr −C6H5 and and H3C −CHBr −C6H5