Practice Questions

Q46.Identify A in the following chemical reaction. (1) (2) (3) (4)

Q46.Which one of the following carbonyl compounds cannot be prepared by addition of water on an alkyne in the presence of HgSO4 and H2 SO4? JEE Main 2021 (24 Feb Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q46.Which one of the products of the following reactions does not react with Hinsberg reagent to form sulphonamide? JEE Main 2021 (25 Jul Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q46. Consider the above reaction, the major product P formed is :- JEE Main 2021 (27 Jul Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q46.Identify the major products A and B respectively in the following reactions of phenol (1) (2) (3) (4)

Q46. The product "A" in the above reaction is: (1) (2) (3) (4)

Q46.Which one of the following phenols does not give colour when condensed with phthalic anhydride in presence of conc. H2 SO4 ? JEE Main 2021 (26 Aug Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q46.For the reaction given below : The compound which is not formed as a product in the reaction is a : (1) diol (2) monocarboxylic acid (3) compound with both alcohol and acid functional (4) dicarboxylic acid groups

Q46.Which of the following is least basic? (1) (CH3 CO)¨N HC2 H5 (2) (C2H5)3 ¨N (3) (CH3 CO)2 ¨NH (4) (C2H5)2 ¨NH

Q46.The correct options for the products A and B of the following reactions are: (1) (2) (3) (4)

Q46. Considering the above chemical reaction, identify the product X : (1) (2) (3) (4)

Q46. Which among the above compound/s does/do not form Silver mirror when treated with Tollen's reagent? (1) (I), (III) and (IV) only (2) Only (IV) (3) Only (II) (4) (III) and (IV) only

Q46.Given below are two statements: Statement I : The identification of Ni2+ is carried out by dimethyl glyoxime in the presence of NH4 OH. Statement II :The dimethyl glyoxime is a bidentate neutral ligand. In the light of the above statements, choose the correct answer from the options given below: (1) Statement I is false but Statement II is true. (2) Statement I is true but Statement II is false. (3) Both Statement I and Statement II are true. (4) Both Statement I and Statement II are false.

Q46. In the above reaction, the structural formula of (A), "X" and "Y" respectively are : (1) (2) (3) (4)

Q46.The major product of the following reaction is: (1) (2) (3) (4)

Q46.The correct structures of A and B formed in the following reactions are : (1) (2) (3) (4)

Q47.The structures of A and B formed in the following reaction are : Ph = - C6H5 JEE Main 2021 (31 Aug Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q47.The major products formed in the following reaction sequence A and B are: JEE Main 2021 (26 Aug Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q47.In the following sequence of reactions a compound A, (molecular formula C6H12O2 ) with a straight chain structure gives a C4 carboxylic acid. A is : Oxidation 𝐴LiAlH4 𝐵 ⟶ C4 - carboxylic acid H3O+ (1) (2) (3) (4)

Q47. Consider the above reaction, the Product "P" is : (1) (2) (3) (4)

Q47. In the above chemical reaction, intermediate " X" and reagent/condition " A" are : (1) (2) (3) (4)

Q47. Considering the above reaction, X and Y respectively are: JEE Main 2021 (18 Mar Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q47.The major products A and B in the following set of reactions are: (1) (2) (3) (4)

Q47.The major product of the following reaction is : H2/ CO −CH3 CH2 CH = CH2 → Rh catalyst (1) CH3 CH2 CH = CH −CHO (2) CH3 CH2 CH2 CH2 CHO (3) CH3 CH2 CH2 CHO (4)

Q47.Ceric ammonium nitrate and CHCl3 / alc. KOH are used for the identification of functional groups present in _ and _ respectively. (1) amine, phenol (2) alcohol, amine (3) amine, alcohol (4) alcohol, phenol