Practice Questions

Q47.Identify the major product in the following reaction. (1) (2) (3) (4)

Q47.Which one the following compounds will readily react with dilute NaOH ? (1) C2H5OH (2) C6H5OH (3) C6H5CH2OH (4) (CH3)3COH

Q48. Identify the product (P) in the following reaction: JEE Main 2024 (08 Apr Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q48. C2H5OH−CH3 −CH2 −CH2 −Br + NaOH → Product 'A' Consider the above reactions, identify product B and product C . (1) B = 1-Propanol C = 2-Propanol (2) B = C = 2-Propanol (3) B = 2-Propanol C = 1-Propanol (4) B = C = 1-Propanol

Q48.Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: Alcohols react both as nucleophiles and electrophiles. Reason R: Alcohols react with active metals such as sodium, potassium and aluminum to yield corresponding alkoxides and liberate hydrogen. In the light of the above statements, choose the correct answer from the options given below: (1) A is false but R is true. (2) A is true but R is false. (3) Both A and R are true and R is the correct (4) Both A and R are true but R is NOT the correct explanation of A explanation of A

Q48.CoNH36 3 + and CoF6 3 - are respectively known as: (1) Spin free Complex, Spin paired Complex (2) Spin paired Complex, Spin free Complex (3) Outer orbital Complex, Inner orbital Complex (4) Inner orbital Complex, Spin paired Complex

Q48.Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom. Reason R : Phenols react with halogen acids violently. In the light of the above statements, choose the most appropriate from the options given below: (1) Both A and R are true but R is NOT the correct (2) A is false but R is true explanation of A (3) A is true but R is false (4) Both A and R are true and R is the correct explanation of A

Q48.On passing a gas, ' X ', through Nessler's reagent, a brown precipitate is obtained. The gas ' X ' is (1) H2S (2) CO2 (3) NH3 (4) Cl2

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. (Test) (Identification) (A) Bayer's test MARKS (I) Phenol VIARKS Match List - I with List - II. (B) Ceric ammonium nitrate test (II) Aldehyde (C) Phthalein dye test R K (III) Alcoholic-OH group (D) Schiff's test (IV) Unsaturation Choose the correct answer from the options given below : (1) (A)-(IV), (B)-(III), (C)-(I), (D)-(II) (2) (A)-(II), (B)-(III), (C)-(IV), (D)-(I) (3) (A)-(IV), (B)-(I), (C)-(II), (D)-(III) (4) (A)-(III), (B)-(I), (C)-(IV), (D)-(II) JEE Main 2024 (08 Apr Shift 2) JEE Main Previous Year Paper

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

Q48.Match List – I with List –II. JEE Main 2024 (01 Feb Shift 1) JEE Main Previous Year Paper Choose the correct answer from options given below: (1) A - III, B - IV, C - I, D - II (2) A - IV, B - II, C - I, D - III (3) A - IV, B - II, C - III, D - I (4) A - III, B - IV, C - II, D - I

Q48. Consider the above reaction sequence and identify the major product P . (1) Methoxymethane (2) Methanoic acid (3) Methanal (4) Methane

Q48.Match List-I with List-II. List I (Reaction) List II (Reagent(s)) (A) (I) Na2Cr2O7 / H2SO4 (B) (II) (i) NaOH (ii) CH3Cl (i)NaOH, CHCl3 (C) (III) (ii) NaOH (iii) HCl (i) NaOH (ii) CO2 (D) (IV) (iii) HCl Choose the correct answer from the options given below: (1) (A)-(IV), (B)-(I), (C)-(III), (D)-(II) (2) (A)-(II), (B)-(III), (C)-(I), (D)-(IV) (3) (A)-(II), (B)-(I), (C)-(III), (D)-(IV) (4) (A)-(IV), (B)-(III), (C)-(I), (D)-(II)

Q48.Which among the following aldehydes is most reactive towards nucleophilic addition reactions? JEE Main 2024 (06 Apr Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q48.Identify major product ‘𝑃’ formed in the following reaction. JEE Main 2024 (31 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q48.Given below are two statements: Statement-I: The gas liberated on warming a salt with dil H2 SO4 , turns a piece of paper dipped in lead acetate into black, it is a confirmatory test for sulphide ion. Statement-II: In statement-I the colour of paper turns black because of formation of lead sulphite. In the light of the above statements, choose the most appropriate answer from the options given below: (1) Both Statement-I and Statement-II are false (2) Statement-I is false but Statement-II is true (3) Statement-I is true but Statement-II is false (4) Both Statement-I and Statement-II are true.

Q48.During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in NH4OH solution when sodium carbonate extract was first acidified with dil. HNO3 and then AgNO3 solution was added. This indicates presence of : (1) Br− (2) I− (3) Cl− (4) CO32− JEE Main 2024 (06 Apr Shift 2) JEE Main Previous Year Paper

Q48.Salicylaldehyde is synthesized from phenol, when reacted with (1) (2) CO2 , NaOH (3) CCl4 , NaOH (4) HCCl3 , NaOH

Q48. Identify the product in the following reaction : (1) (2) (3) (4)

Q48.The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is ; (1) Retention occurs in SNl reaction and inversion (2) Racemisation occurs in SNl reaction and occurs in SN2 reaction. retention occurs in SN2 reaction. (3) Racemisation occurs in both SN1 and SN2 (4) Racemisation occurs in SN1 reaction and reactions. inversion occurs in SN2 reaction.

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.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. 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