Practice Questions

Q48.Which of the following reaction is an example of ammonolysis? (1) C6H5COCl + C6H5 NH2 ⟶C6H5 CONHC6 H5(2) [H] C6H5 CH2 CN →C6H5 CH2 CH2 NH2 (3) HCl (4) C6H5 CH2 Cl + NH3 ⟶C6H5 CH2 NH2−C6H5 NH2 → C6H5 NH3 Cl−

Q48.The major product of the following chemical reaction is : (1) CH3 CH2 CHO (2) CH3 CH2 CH2 OH (3) CH3 CH2 CH3 (4) (CH3 CH2 CO)2O

Q48.Which of the following is not a correct statement for primary aliphatic amines? JEE Main 2021 (27 Aug Shift 1) JEE Main Previous Year Paper (1) Primary amines can be prepared by the Gabriel (2) Primary amines are less basic than the secondary phthalimide synthesis. amines. (3) The intermolecular association in primary amines (4) Primary amines on treating with nitrous acid is less than the intermolecular association in solution form corresponding alcohols except secondary amines. methyl amine.

Q48.Which one of the following chemicals is responsible for the production of HCl in the stomach leading to irritation and pain? (1) (2) (3) (4)

Q48.Match List-I with List-II : List-I Chemical Compound List-II Used as a Sucralose i Synthetic detergent b Glyceryl ester of stearic acid ii Artificial sweetener c Sodium benzoate iii Antiseptic d Bithional iv Food preservative Choose the correct match : JEE Main 2021 (17 Mar Shift 2) JEE Main Previous Year Paper (1) (a) −(iv), (b) −(iii), (c) −(ii), (d) −(i) (2) (a) −(ii), (b) −(i), (c) −(iv), (d) −(iii) (3) (a )-( iii ), ( b )-( ii ), (c) −(iv), (d) −(i) (4) (a) −(i), (b) −(ii), (c) −(iv), (d) −(iii)

Q48. is a repeating unit for : (1) Novolac (2) Buna-N (3) Acrilan (4) Neoprene

Q48.Which of the following reaction DOES NOT involve Hoffmann Bromamide degradation ? JEE Main 2021 (16 Mar Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q49.Match List-I with List-II : List - I List - II (a) Chloroprene (i) (b) Neoprene (ii) (c) Acrylonitrile (iii) (d) Isoprene (iv) Choose the correct answer from the options given below: (1) (a) - (iii), (b)-(iv), (c) -(ii), (d) -(i) (2) (a) - (ii), (b)-(iii), (c)-(iv), (d) -(i) (3) (a) - (ii), (b)-(i), (c) -(iv), (d) -(iii) (4) (a) - (iii), (b)-(i), (c) -(iv), (d) -(ii)

Q49.The functions of antihistamine are : (1) Antiallergic and Analgesic (2) Antacid and Antiallergic (3) Analgesic and antacid (4) Antiallergic and antidepressant

Q49.Which among the following is not a polyester ? (1) Glyptal (2) PHBV (3) Novolac (4) Dacron

Q49.Fructose is an example of :- (1) Pyranose (2) Ketohexose (3) Aldohexose (4) Heptose

Q49.Carbylamine test is used to detect the presence of primary amino group in an organic compound. Which of the following compound is formed when this test is performed with aniline? (1) (2) (3) (4)

Q49.Sodium stearate CH3CH216COO-Na+ is an anionic surfactant which forms micelles in oil. Choose the correct statement for it from the following : (1) It forms spherical micelles with CH3CH216 - (2) It forms non-spherical micelles with -COO- group group pointing towards the centre of sphere. pointing outwards on the surface. (3) It forms spherical micelles with CH3CH216 - (4) It forms non-spherical micelles with CH3CH216 - group pointing outwards on the surface of sphere group pointing towards the centre.

Q49. A B C D The correct statement about (A), (B), (C) and (D) is: JEE Main 2021 (27 Aug Shift 1) JEE Main Previous Year Paper (1) (B) and (C) are tranquillizers (2) (B), (C) and (D) are tranquillizers (3) (A) and (D) are tranquillizers (4) (A), (B) and (C) are narcotic analgesics

Q49.The major product formed in the following reaction is : (1) (2) (3) (4) JEE Main 2021 (31 Aug Shift 1) JEE Main Previous Year Paper

Q49.Match List-I with List-II List-I List-II Test/Reagents/Observation(s) Species detected (a) Lassaigne's Test (i) Carbon (b)Cu(II) oxide (ii) Sulphur N, S, P, and (c) Silver nitrate (iii) halogen (d)The sodium fusion extract gives black precipitate with (iv) Halogen acetic acid and lead acetate Specifically The correct match is : (1) (a) −(iii), (b) −(i), (c) −(ii), (d) −(iv) (2) (a) −(i), (b) −(iv), (c) −(iii), (d) −(ii) (3) (a) −(iii), (b) −(i), (c) −(iv), (d) −(ii) (4) (a) −(i), (b) −(ii), (c) −(iv), (d) −(iii)

Q49.Given below are two statements: Statement I: Colourless cupric metaborate is reduced to cuprous metaborate in a luminous flame. Statement II: Cuprous metaborate is obtained by heating boric anhydride and copper sulphate in a non- luminous flame. In the light of the above statements, choose the most appropriate answer from the options given below. (1) Statement I is false but Statement II is true (2) Both Statement I and Statement II are false (3) Both Statement I and Statement II are true (4) Statement I is true but Statement II is false

Q49.The correct structure of Ruhemann's Purple, the compound formed in the reaction of Ninhydrin with proteins is: (1) (2) (3) (4)

Q49.Which one of the following tests used for the identification of functional groups in organic compounds does not use copper reagent? (1) Seliwanoff's test (2) Biuret test for peptide bond (3) Barfoed's test (4) Benedict's test

Q49.Match List - I with List - II : List-I (Class of Chemicals) List-II (Example) (a) Antifertility drug (i) Meprobamate (b) Antibiotic (ii) Alitame (c) Tranquilizer (iii) Norethindrone (d) Artificial Sweetener (iv) Salvarsan (1) (a) −(ii), (b) −(iii), (c) −(iv), (d) −(i) (2) (a) −(iv), (b) −(iii), (c) −(ii), (d) −(i) (3) (a) −(iii), (b) −(iv), (c) −(i), (d) −(ii) (4) (a) −(ii), (b) −(iv), (c) −(i), (d) −(iii)

Q49.Which one among the following chemical tests is used to distinguish monosaccharide from disaccharide ? (1) Seliwanoff's test (2) Iodine test (3) Barfoed test (4) Tollen's test

Q49. The Major Product in the above reaction is : JEE Main 2021 (26 Aug Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q49.Match the list −I with list −II List −I List −II (Class of Drug) (Example) (a) Antacid (i) Novestrol (b) Artificial sweetener (ii) Cimetidine (c) Antifertility (iii) Valium (d) Tranquilizers (iv) Alitame (1) a −ii, b −iv, c −i, d −iii (2) a −iv, b −i, c −ii, d −iii (3) a −iv, b −iii, c −i, d −ii (4) a −ii, b −iv, c −iii, d −i

Q49.With respect to drug-enzyme interaction, identify the wrong statement: (1) Non-Competitive inhibitor binds to the allosteric (2) Allosteric inhibitor changes the enzyme's active site site (3) Allosteric inhibitor competes with the enzyme's (4) Competitive inhibitor binds to the enzyme's active site active site

Q49.The correct sequential addition of reagents in the preparation of 3−nitrobenzoic acid from benzene is: JEE Main 2021 (26 Aug Shift 1) JEE Main Previous Year Paper (1) Br2 / AlBr3, HNO3 /H2 SO4, Mg / ether, CO2, H3O+ (2) Br2 / AlBr3, NaCN, H3O+, HNO3 /H2 SO4 (3) Br2 / AlBr3, HNO3 /H2 SO4, NaCN, H3O+ (4) HNO3 /H2 SO4, Br2 / AlBr3, Mg / ether, CO2, H3O+