Practice Questions

Q42.Match List-I with List-II. List-I List-II ACds + 2NiOH3s →CdOs + 2NiOH2s + H2Ol I Primary battery JEE Main 2022 (28 Jul Shift 1) JEE Main Previous Year Paper Discharging of secondary B ZnHg + HgOs →ZnOs + Hgl II battery C 2PbSO4s + 2H2OI →Pbs + PbO2s + 2H2SO4aqIII Fuel cell D2H2g + O2g →2H2Ol IVCharging of secondary battery Choose the correct answer from the options given below (1) A - I, B - II, C - III, C - IV (2) A - IV, B - I, C - IV, C - III (3) A - II, B - I, C - IV, C - III (4) A - II, B - I, C - III, C - IV

Q43.The ' f ' orbitals are half and completely filled, respectively in lanthanide ions [Given : Atomic no. Eu, 63 : Sm, 62 : Tm, 69; Tb, 65; Yb, 70; Dy, 66] (1) Eu2+ and Tm2+ (2) Sm2+ and Tm3+ (3) Tb4+ and Yb2+ (4) Dy3+ and Yb3+

Q43.Which of the following will have maximum stabilization due to crystal field? (1) [Ti (H2O)6]3+ (2) [Co (H2O)6]2+ (3) [Co (CN)6]3− (4) [Cu (NH3)4]2+

Q43.Given below are two statements . Statement I : In CuSO4 ⋅5H2O, Cu −O bonds are present. Statement II : In CuSO4. 5H2O, ligands coordinating with Cu (II) ion are O-and S-based ligands. In the light of the above statements, choose the correct answer from the options given below JEE Main 2022 (29 Jun Shift 2) JEE Main Previous Year Paper (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

Q43. Considering the above reactions, the compound ' A ' and compound ' B ' respectively are (1) (2) (3) (4) JEE Main 2022 (29 Jul Shift 1) JEE Main Previous Year Paper

Q43.Toluene can be easily converted into benzaldehyde by which of the following reagents? (1) CrO3 /acetic acid, H3O+ (2) CrO3 /acetic anhydride, H3O+ (3) KMnO4 / HCl, H3O+ (4) CO, HCl, Anhyd. AlCl3

Q43.Match List-I with List-II List-I List-II (Complex) (Hybridization) A Ni (CO)4 I sp3 B [Ni (CN)4]2− II sp3 d2 C [Co (CN)6]3− III d2 sp3 D [CoF6]3− IV dsp2 Choose the correct answer from the options given below (1) A −IV, B −I, C −III, D −II (2) A −I, B −IV, C −III, D −II (3) A −I, B −IV, C −II, D −III (4) A −IV, B −I, C −II, D −III

Q43. Fe3+ cation gives a prussian blue precipitate on addition of potassium ferrocyanide solution due to the formation of (1) [Fe (H2O)6]2[Fe (CN)6] (2) Fe2 [Fe (CN)6]2 (3) Fe3 [Fe (OH)2(CN)4]2 (4) Fe4 [Fe (CN)6]3

Q43.Which of the following oxoacids of sulphur contains "S" in two different oxidation states? (1) H2S2O3 (2) H2S2O6 (3) H2S2O7 (4) H2S2O8

Q43.In the given reaction 'A' can be (1) benzyl bromide (2) bromobenzene (3) cyclohexyl bromide (4) methyl bromide

Q43.The oxoacid of phosphorus that is easily obtained from a reaction of alkali and white phosphorus and has two P −H bonds, is (1) Phosphonic acid (2) Phosphinic acid (3) Hypophosphoric acid (4) Pyrophosphorus acid

Q43.Among the following, which is the strongest oxidizing agent? (1) Mn3 + (2) Ti3 + (3) Fe3 + (4) Cr3 +

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

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

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