Practice Questions

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 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.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.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)

Q45.Given below are two statements. Statement I : Phenols are weakly acidic. Statement II : Therefore they are freely soluble in NaOH solution and are weaker acids than alcohols and water. Choose the most appropriate option (1) Both Statement I and Statement II are correct. (2) Statement I is correct but Statement II is incorrect. (3) Statement I is incorrect but Statement II is (4) Both Statement I and Statement II are incorrect. correct. JEE Main 2022 (29 Jun Shift 1) JEE Main Previous Year Paper

Q45.Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Experimental reaction of CH3 Cl with aniline and anhydrous AlCl3 does not give o and p - methylaniline. Reason (R) : The −NH2 group of aniline becomes deactivating because of salt formation with anhydrous AlCl3 and hence yields m-methyl aniline as the product. In the light of the above statements, choose the most appropriate answer from the options given below (1) Both (A) and (R) are true and (R) is the correct (2) Both (A) and (R) are true but (R) is not the explanation of (A). correct explanation of (A). (3) (A) is true, but (R) is false. (4) (A) is false, but (R) is true.

Q45.The major product in the reaction JEE Main 2022 (25 Jun Shift 1) JEE Main Previous Year Paper (1) 𝑡-Butyl ethyl ether (2) 2 -Methyl pent-1-ene (3) 2, 2 -Dimethyl butane (4) 2 -Methyl prop-1-ene

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.Match List-I with List-II, match the gas evolved during each reaction. List-I List-II 𝛥 A I H2 ⟶ NH42Cr2O7 B KMnO4 + HCl → II N2 C Al + NaOH + H2O → III O2 Δ D IV Cl2 NaNO3 ⟶ Choose the correct answer from the options given below (1) A - II, B - III, C - I, D - IV (2) A - III, B - I, C - IV, D - II (3) A - II, B - IV, C - I, D - III (4) A - III, B - IV, C - I, D - II

Q45. The major product of the above reactions is (1) (2) (3) (4) JEE Main 2022 (24 Jun Shift 1) JEE Main Previous Year Paper

Q45.A compound ' X ' is acidic and it is soluble in NaOH solution, but insoluble in NaHCO3 solution. Compound ' X ' also gives violet colour with neutral FeCl3 solution. The compound ' X ' is (1) (2) (3) (4)

Q45.The major product formed in the following reaction, is (1) (2) (3) (4)

Q45.The correct order of energy of absorption for the following metal complexes is A : [Ni (en)3]2+, B : [Ni (NH3)6]2+, C : [Ni (H2O)6]2+ (1) C < B < A (2) B < C < A (3) C < A < B (4) A < C < B

Q45.Which of the following reactions will yield benzaldehyde as a product? JEE Main 2022 (27 Jun Shift 1) JEE Main Previous Year Paper (1) B & C (2) C & D (3) A & D (4) A & C Q46.' A ' and ' B' respectively are (1)O3 −A. → Ethane- 1, 2 -dicarbaldehyde +Glyoxal/Oxaldehyde (2)Zn−H2O (1)O3 −B → 5− -oxohexanal (2)Zn−H2O (1) 1 -methylcyclohex- 1, 3 -diene & cyclopentene.(2) Cyclohex- 1, 3 -diene & cyclopentene (3) Cyclohex- 1, 3 -diene & 1 -methylcyclopent- 1 - (4) 1 -methylcyclohex- 1, 4 -diene & 1 - ene methylcyclopent- 1 -ene

Q45.Transition metal complex with highest value of crystal field splitting (Δ0) will be (1) [Mo (H2O)6]3+ (2) [Cr (H2O)6]3+ (3) [Os (H2O)6]3+ (4) [Fe (H2O)6]3+

Q45.Octahedral complexes of copper II undergo structural distortion (Jahn-Teller). Which one of the given copper II complexes will show the maximum structural distortion? (en-ethylenediamine; H2N - CH2 - CH2 - NH2) (1) CuH2O6SO4 (2) CuenH2O4SO4 (3) cis-Cuen2Cl2 (4) trans-Cuen2Cl2

Q45.The major product P of the given reaction is (where, Me is −CH3 ) JEE Main 2022 (28 Jun Shift 2) JEE Main Previous Year Paper (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.The metal complex that is diamagnetic is (Atomic number : Fe, 26; Cu, 29) (1) K3CuCN4 (2) K2CuCN4 (3) K3FeCN4 (4) K4FeCl6

Q45.Which one of the following compounds is inactive towards SN1 reaction? (1) (2) (3) (4)

Q45.Given below are two statements : Statement I : On heating with KHSO4, glycerol is dehydrated and acrolein is formed. Statement II : Acrolein has fruity odour and can be used to test glycerol's presence. Choose the correct option. (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

Q45.Major product ' B' of the following reaction sequence is (1) (2) (3) (4)

Q45.Match List-I with List-II List-I List-II JEE Main 2022 (27 Jun Shift 2) JEE Main Previous Year Paper A I Br2 in CS2 B II Na2 Cr2 O7/H2 SO4 C III Zn D IV CHCl3 / NaOH Question: Choose the correct answer from the options given below (1) A −IV, B −III, C −II, D −I (2) A −IV, B −III, C −I, D −II (3) A −II, B −III, C −I, D −IV (4) A −IV, B −II, C −III, D −I

Q46.Two statements are given belwo : Statement I : The melting point of monocarboxylic acid with even number of carbon atoms is higher than that of with odd number of carbon atoms acid immediately below and above it in the series. Statement II : The solubility of monocarboxylic acids in water decreases with increase in molar mass. Choose the most appropriate option : (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.

Q46. Consider the above reaction sequence and identify the product B. (1) (2) (3) (4)