Practice Questions

Q43.Polar stratospheric clouds facilitate the formation of (1) ClONO2 (2) HOCl (3) ClO (4) CH4

Q43.The interhalogen compound formed from the reaction of bromine with excess of fluorine is a (1) hypohalite (2) halate (3) perhalate (4) halite

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.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.Which of the following chemical reactions represents Hall-Heroult Process? (1) Cr2 O3 + 2Al →Al2 O3 + 2 Cr (2) 2 Al2 O3 + 3C →4Al + 3 CO2 (3) FeO + CO →Fe + CO2 (4) 2[Au (CN)2]−(aq) + Zn(s) →2 Au(s) + [Zn(CN4)]2−

Q43.Which of the reaction is suitable for concentrating ore by leaching process? (1) 2Cu2 S + 3O2 →2Cu2O + 2SO2 (2) Fe3O4 + CO →3FeO + CO2 (3) Al2O3 + 2NaOH + 3H2O →2NaAlOH4 (4) Al2O3 + 6Mg →6MgO + 4Al

Q43.Refining using liquation method is the most suitable for metals with (1) Low melting point (2) High boiling point (3) High electrical conductivity (4) Less tendency to be soluble in melts than impurities

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+

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

Q44.The final product ' A' in the following reaction sequence (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. 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.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 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. The stable carbocation formed in the above reaction is : (1) (2) ⊕ CH3 CH2 (3) ⊕ (4) CH3 − CH −CH3

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

Q44. In the given conversion the compound A is (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.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.White precipitate of AgCl dissolves in aqueous ammonia solution due to formation of (1) AgNH34Cl2 (2) AgCl2NH32 (3) AgNH32Cl (4) AgNH3ClCl

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 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.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)