Q.28 Which one of the following pairs of amino acids is NOT incorporated in apolypeptide chain?(A) 4–Hydroxyproline and γ–carboxyglutamate(B) γ–Carboxyglutamate and desmosine(C) Ornithine and citrulline(D) 4–Hydroxyproline and 5–hydroxylysine Ornithine and […]
Q.27 Given the standard reduction potentials (E⊖) for the half-cell reactions below, the standard Gibbs free energy of the dissolution of silver chloride in water, at 298 K, is _____________ […]
Q.26 The ionic product of water at 40 °C is 2.92 ×10-14 M². The pH of water at 40 °C is ___________ (rounded off to 2 decimal places). The pH […]
Q.25 The molecule(s) with non–zero dipole moment is/are(A) N2(B) CO2(C) NO(D) SO2 NO and SO2 have non-zero dipole moments, while N2 and CO2 have zero dipole moments. Option Analysis (A) […]
![Q.24 The paramagnetic species among the following is/are (Given: Atomic numbers of Cr = 24; Fe = 26; Ni = 28) (A) [Fe(CN)6]3– (B) [Ni(OH2)6]2+ (C) [Ni(CN)4]2– (D) [Cr(CN)6]3–](https://www.letstalkacademy.com/wp-content/uploads/2025/12/slide_24-5.png)
Q.24 The paramagnetic species among the following is/are (Given: Atomic numbers of Cr = 24; Fe = 26; Ni = 28) (A) [Fe(CN)6]3– (B) [Ni(OH2)6]2+ (C) [Ni(CN)4]2– (D) [Cr(CN)6]3– The […]
![Q.23 Upon addition of compound X to an aqueous AgNO₃ solution, a white precipitate appears instantly. Also, X does not exhibit geometrical isomerism. The CORRECT option(s) for X is/are (A) [Cr(OH₂)₄Cl₂]Cl (B) [Cr(OH₂)₅Cl]Cl₂ (C) [Cr(OH₂)₆]Cl₃ (D) [Cr(OH₂)₃Cl₃]](https://www.letstalkacademy.com/wp-content/uploads/2025/12/slide_23-5.png)
Q.23 Upon addition of compound X to an aqueous AgNO₃ solution, a white precipitate appears instantly. Also, X does not exhibit geometrical isomerism. The CORRECT option(s) for X is/are (A) […]
Q.22 Which one among the following structures is the most stable conformer of(Z)–pent–2–ene? The most stable conformer of (Z)-pent-2-ene among the given options is option (D). Introduction Understanding the most […]
Q.21 An enzyme-catalyzed conversion of a substrate at 298 K proceeds by a Michaelis-Menten mechanism. The Lineweaver-Burk plot for the analysis of the experimental data has an intercept along the […]
Q.20 Each of the following alkenes undergoes addition reaction with bromine. Under thesame reaction conditions, the CORRECT trend in the reaction ratesis(A) I > II > III(B) II > III […]
Q.19 The initial rate of a reaction triples when the concentration of a reactant, A, isdoubled. The order of the reaction with respect to A is _______ (rounded off to […]
