Practice Questions

Q48.Which of the following compounds will give silver mirror with ammoniacal silver nitrate? A. Formic acid B. Formaldehyde C. Benzaldehyde D. Acetone Choose the correct answer from the options given below : (1) A, B and C only (2) C and D only (3) B and C only (4) A only

Q48.Identify compound (Z) in the following reaction sequence. JEE Main 2024 (05 Apr Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q48.In the following sequence of reaction, the major products B and C respectively are : (1) (2) (3) (4)

Q49. List-I List-II (Name of the test) (Reaction sequence involved) [M is metal] Co(NO3)2 −A. Borax bead test I. MCO3 →MO → CoO ⋅MO Charcoal Match List I with List II B. II. MCO3 →MCl2 →M2+ cavity test Cobalt nitrate Na2 B4O7 −C III MSO4 → M(BO2)2 →MBO2 →M test Δ Na2CO3 −D. Flame test IV MSO4 → MCO3 →MO →M Δ Choose the correct answer from the options given below: (1) A-III, B-II, C-IV, D-I (2) A-III, B-IV, C-I, D-II (3) A-III, B-I, C-II, D-IV (4) A-III, B-I, C-IV, D-II

Q49. Match List - I with List - II. Choose the correct answer from the options given below : (1) (A)-(IV), (B)-(II), (C)-(III), (D)-(I) (2) (A)-(I), (B)-(IV), (C)-(II), (D)-(III) (3) (A)-(III), (B)-(II), (C)-(I), (D)-(IV) (4) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)

Q49. Major product of the following reaction is JEE Main 2024 (09 Apr Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q49.In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to : (1) increase concentration of Cl− ions (2) increase concentration of NH4+ ions (3) prevent interference by phosphate ions (4) decrease concentration of −OH ions

Q49. Acid D formed in above reaction is: (1) Gluconic acid (2) Succinic acid (3) Oxalic acid (4) Malonic acid

Q49.The azo-dye 𝑌 formed in the following reactions is Sulphanilic acid + NaNO2 + CH3COOH →X (1) (2) (3) (4)

Q49.m-chlorobenzaldehyde on treatment with 50%KOH solution yields (1) (2) (3) (4)

Q49.Which one of the following reactions is NOT possible? (1) (2) (3) (4)

Q49. Identify major product " X " formed in the following reaction : (1) (2) (3) (4)

Q49.Type of amino acids obtained by hydrolysis of proteins is : (1) β (2) α (3) δ (4) γ

Q49.Identify ' A ' in the following reaction: (1) (2) (3) (4)

Q49. List - I List - II (Precipitating reagent and conditions) (Cation) A. NH4Cl + NH4OH/ARKS I. Mn2+ Match List I with List II Choose the B. NH4OH + Na2CO3 II. Pb2+ C. NH4OH + NH4Cl + H2 S gas III. Al3+ D. dilute HCl IV. Sr2+ correct answer from the options given below: (1) A-III, B-IV, C-I, D-II (2) A-III, B-IV, C-II, D-I (3) A-IV, B-III, C-II, D-I (4) A-IV, B-III, C-I, D-II

Q49.The Lassiagne's extract is boiled with dil HNO3 before testing for halogens because, (1) AgCN is soluble in HNO3 (2) Silver halides are soluble in HNO3 (3) Ag2 S is soluble in HNO3 (4) Na2 S and NaCN are decomposed by HNO3

Q49.A reagent which gives brilliant red precipitate with Nickel ions in basic medium is (1) sodium nitroprusside (2) neutral FeCl3 (3) meta-dinitrobenzene (4) dimethyl glyoxime

Q49.Major product formed in the following reaction is a mixture of: JEE Main 2024 (27 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q49.Find out the major product formed from the following reaction. [Me : −CH3] (1) (2) (3) (4)

Q49. List - I List - II Reaction Type of redox reaction (A) Li (I) 589.2 Match List - I with List - II. Choose the correct answer from the options (B) Na (II) 455.5 (C) Rb (III) 670.8 (D) Cs (IV) 780.0 given below : (1) (A)-(II), (B)-(IV), (C)-(III), (D)-(I) (2) (A)-(I), (B)-(IV), (C)-(III), (D)-(II) (3) (A)-(IV), (B)-(II), (C)-(I), (D)-(III) (4) (A)-(III), (B)-(I), (C)-(IV), (D)-(II)

Q49.The compound that is white in color is (1) ammonium sulphide (2) lead sulphate (3) lead iodide (4) ammonium arsinomolybdate

Q50.Which of the following is the correct structure of L-Glucose? (1) (2) (3) (4)

Q50.Match List - I with List - II. List-I (Reactants) List-II Products (A) Phenol, Zn / ∆ (I) Salicylaldehyde JEE Main 2024 (01 Feb Shift 2) JEE Main Previous Year Paper (B) Phenol, CHCl3, NaOH, HCl (II) Salicylic acid (C) Phenol, CO2, NaOH, HCl (III) Benzene (D) Phenol, Conc. HNO3 (IV) Picric acid Choose the correct answer from the options given below. (1) (A)-(IV), (B)-(II), (C)-(I), (D)-(III) (2) (A)-(IV), (B)-(I), (C)-(II), (D)-(III) (3) (A)-(III), (B)-(I), (C)-(II), (D)-(IV) (4) (A)-(III), (B)-(IV), (C)-(I), (D)-(II) Q51.10 mL of gaseous hydrocarbon on combustion gives 40 mL of CO2g and 50 mL of water vapour. Total number of carbon and hydrogen atoms in the hydrocarbon is _______.

Q50.Two nucleotides are joined together by a linkage known as : (1) Phosphodiester linkage (2) Glycosidic linkage (3) Disulphide linkage (4) Peptide linkage

Q50.The products A and B formed in the following reaction scheme are respectively JEE Main 2024 (30 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)