Practice Questions

Q55.The major product formed in the following reaction is: (1) (2) (3) (4)

Q55. The major product obtained in the following reaction is: (1) (2) (3) (4)

Q55.An ‘Assertion’ and a ‘Reason’ is given below. Choose the correct answer from the following options: Assertion (A): Vinyl halides do not undergo nucleophilic substitution easily. Reason (R): Even though the intermediate carbocation is stabilized by loosely held π− electrons, the cleavage is difficult because of the strong bonding. (1) Both (A) and (R) are correct statements but (R) is not the correct explanation of (A). (2) Both (A) and (R) are wrong statements. (3) Both (A) and (R) are wrong statements and (R) is the correct explanation of (A). (4) (A) is a correct statement but (R) is a wrong statement.

Q55.The major product ′Y′ in the following reaction is: (1) (2) (3) (4)

Q56.The organic compound that gives following qualitative analysis is: Test Inference (a) Dil. HCl Insoluble (b) NaOH solution Soluble (c) Br2/water Decolourization (1) (2) (3) (4)

Q56.Consider the following reactions: ‘A’ is: (1) CH2 = CH2 (2) CH ≡CH (3) CH3 −C ≡C −CH3 (4) CH3 −C ≡CH

Q56.The test performed on compound x and their inferences are: Test Inference (a) 2, 4 - DNP test Coloured precipitate yellow (b) Iodoform test Yellow precipitate (c) Azo-dye test No dye formation Compound ′x′ is: JEE Main 2019 (09 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q56. The major product of the following reaction is: (1) (2) (3) (4) JEE Main 2019 (12 Jan Shift 1) JEE Main Previous Year Paper

Q56. In the following compound, the favourable site/s for protonation is/are : JEE Main 2019 (11 Jan Shift 2) JEE Main Previous Year Paper (1) (a) and (e) (2) (b), (c) and (d) (3) (a) and (d) (4) (a)

Q56.The major product 'X' formed in the following reaction is: JEE Main 2019 (10 Jan Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q56.The major product of the following reaction (1) (2) (3) (4)

Q56.The major product obtained in the following reaction is: JEE Main 2019 (08 Apr Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q56.Which is the most suitable reagent for the following transformation? (1) Tollen's reagent (2) I2/ NaOH (3) Alkaline KMnO4 (4) CrO2 Cl2 / CS2

Q56.Major products of the following reaction are: (1) CH3OH and HCO2H (2) HCOOH and (3) (4) and CH3OH and

Q56. The major product of the following reaction is : (1) (2) (3) (4)

Q56.An organic compound ‘X’ showing the following solubility profile is: (1) m-Cresol (2) o-Toluidine (3) Oleic acid (4) Benzamide

Q56.Compound AC9H10O shows positive iodoform test. Oxidation of A with KMnO4 / KOH gives acid BC8H6O4 . Anhydride of B is used for the preparation of phenolphthalein. Compound A is: JEE Main 2019 (10 Apr Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q56.The increasing order of the reactivity of the following with LiAlH4 is: (A) (B) (C) (D) (1) (B) < (A) < (D) < (C) (2) (A) < (B) < (C) < (D) (3) (A) < (B) < (D) < (C) (4) (B) < (A) < (C) < (D)

Q56.The highest value of the calculated spin only magnetic moment (in BM) among all the transition metal complexes is (1) 4 .90 BM (2) 3 .87 BM (3) 6 .93 BM (4) 5 .92 BM JEE Main 2019 (09 Jan Shift 1) JEE Main Previous Year Paper

Q56.The major products A and B for the following reactions are, respectively: JEE Main 2019 (09 Apr Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q57.The major product of the following reaction is: (1) (2) (3) (4)

Q57.In the following reaction HCl −Aldehyde + Alcohol → Acetal Aldehyde Alcohol HCHO t −BuOH CH3 CHO MeOH The best combination is: (1) HCHO and MeOH (2) CH3 CHO and t −BuOH (3) CH3 CHO and MeOH (4) HCHO and t- BuOH

Q57.The major product of the following reaction is: JEE Main 2019 (10 Apr Shift 1) JEE Main Previous Year Paper (1) (2) (3) CH3CH = CH −CH2NH2 (4)

Q57.A compound 'X' on treatment with Br /NaOH, provided C3H9 N, which gives positive carbylamine test. Compound X′ is: (1) CH3COCH2NHCH3 (2) CH3CH2COCH2NH2 (3) CH3CH2CH2CONH2 (4) CH3CON(CH3)2

Q57.The major product obtained in the following reaction is: (1) (2) (3) (4) JEE Main 2019 (09 Jan Shift 2) JEE Main Previous Year Paper