Practice Questions

Q40.The emf of cell Tl Tl+ Cu2+ Cu is 0.83 V at 298 K. It could be increased by : (0.001M) (0.01M) (1) decreasing concentration of both Tl+ and Cu2+ (2) increasing concentration of Cu2+ ions ions (3) increasing concentration of T1+ ions (4) increasing concentration of both Tl+ and Cu2+ ions

Q40. Product P is JEE Main 2024 (04 Apr Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q40.Major product of the following reaction is: JEE Main 2024 (31 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q40.What pressure (bar) of H2 would be required to make emf of hydrogen electrode zero in pure water at 25∘C ? (1) 10−7 (2) 0.5 (3) 1 (4) 10−14

Q40. Which of the following is metamer of the given compound (X) ? (1) (2) (3) (4)

Q40.The correct IUPAC name of [PtBr2(PMe3)2] is : (1) dibromodi(trimethylphosphine)platinum(II) (2) bis(trimethylphosphine)dibromoplatinum(II) (3) dibromobis(trimethylphosphine)platinum(II) (4) bis[bromo(trimethylphosphine)]platinum(II)

Q40.Which out of the following is a correct equation to show change in molar conductivity with respect to concentration for a weak electrolyte, if the symbols carry their usual meaning : JEE Main 2024 (09 Apr Shift 2) JEE Main Previous Year Paper 2 = 0 (2) Λ2mC −KaΛ∘2m + KaΛmΛm = 0 (1) Λm −Λ0m + AC 1 2 = 0 (3) Λ2mC + KaΛ∘2m −KaΛmΛ∘m = 0 (4) Λm −Λ∘m −AC 1

Q40.For the Compounds : (A) H3C −CH2 −O −CH2 −CH2 −CH3 (B) H3C −CH22 −CH2 −CH2 −CH3 (C) (D) The increasing order of boiling point is : Choose the correct answer from the options given below : (1) (D) < ( C ) < ( A ) < ( B ) (2) (B) < (A) < (C) < (D) (3) (A) < (B) < (C) < (D) (4) (B) < (A) < (D) < (C)

Q40. Which of the following are aromatic? (1) A and C only (2) B and D only (3) C and D only (4) A and B only

Q40.Which of the following acts as a strong reducing agent? (Atomic number : Ce = 58, Eu = 63, Gd = 64, Lu = 71) (1) Lu3+ (2) Gd3+ (3) Eu2+ (4) Ce4+

Q40.The ascending order of acidity of – OH group in the following compounds is : (A) Bu – OH Choose the correct answer from the options given below : (1) (A) < (D) < (C) < (B) < (E) (2) (C) < (A) < (D) < (B) < (E) (3) (C) < (D) < (B) < (A) < (E) (4) (A) < (C) < (D) < (B) < (E)

Q40.Identify the mixture that shows positive deviations from Raoult's Law (1) ( CH3 ) 2CO + C6H5NH2 (2) CHCl3 + C6H6 ) (3) CHCl3 + ( CH3 ) 2CO (4) ( CH3 2CO + CS2

Q40.The functional group that shows negative resonance effect is: (1) -NH2 (2) -OH (3) -COOH (4) -OR

Q40. Consider the given chemical reaction : Product " A " is : (1) picric acid (2) acetic acid (3) adipic acid (4) oxalic acid

Q40.Reduction potential of ions are given below: ClO4- IO4- BrO4- E° = 1 . 19 V ; E° = 1 . 65 V; E° = 1 . 74 V The correct order of their oxidising power is: (1) ClO4- > IO4- > BrO4- (2) BrO4- > IO4- > ClO4- (3) BrO4- > ClO4- > IO4- (4) IO4- > BrO4- > ClO4-

Q40.What happens to freezing point of benzene when small quantity of napthalene is added to benzene? (1) Increases (2) Remains unchanged (3) First decreases and then increases (4) Decreases

Q41.The major product(P) in the following reaction is (1) (2) (3) (4) JEE Main 2024 (29 Jan Shift 1) JEE Main Previous Year Paper

Q41.In Kjeldahl's method for estimation of nitrogen, CuSO4 acts as : (1) Reducing agent (2) Catalytic agent (3) Hydrolysis agent (4) Oxidising agent

Q41.Identify 𝐴 and 𝐵 in the following reaction sequence. (1) (2) (3) (4)

Q41.The quantity of silver deposited when one coulomb charge is passed through AgNO3 solution : (1) 1 g of silver (2) 1 electrochemical equivalent of silver (3) 1 chemical equivalent of silver (4) 0.1 g atom of silver

Q41.The metals that are employed in the battery industries are A. Fe, B. Mn, C. Ni, D. Cr, E. Cd Choose the correct answer from the options given below: (1) B, C and E only (2) A, B, C, D and E (3) A, B, C and D only (4) B, D and E only

Q41. In the above chemical reaction sequence " A " and " B " respectively are (1) H2O, H+ and KMnO4 (2) O3, Zn/H2O and NaOH(alc) /I2 (3) O3, Zn/H2O and KMnO4 (4) H2O, H+ and NaOH(alc)/I2

Q41.The reaction; 1 2 H2( g) + AgCl(s) →H+(aq) + Cl−(aq) + Ag(s) occurs in which of the following galvanic cell : (1) Ag AgCl(s) KCl(soln.) AgNO3 (aq.) Ag (2) Pt H2( g) HCl(soln.) AgCl(s) Ag (3) Pt H2( g) KCl(soln. ) AgCl(s) Ag (4) Pt H2( g) HCl(soln.) AgNO3(aq) Ag −−

Q41.Choose the correct option having all the elements with d10 electronic configuration from the following: (1) 27Co, 28Ni, 26Fe, 24Cr (2) 29Cu, 30Zn, 48Cd, 47Ag (3) 46Pd, 28Ni, 26Fe, 24Cr (4) 28Ni, 24Cr, 26Fe, 29Cu

Q41.Diamagnetic Lanthanoid ions are: (1) Nd3+ and Eu3+ (2) La3+ and Ce4+ (3) Nd3+ and Ce4+ (4) Lu3+ and Eu3+ JEE Main 2024 (30 Jan Shift 1) JEE Main Previous Year Paper