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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– 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) […]

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 […]

Q.18 One mole of an ideal gas expands isothermally and reversibly to double its volume. If the expansion work done by the system is 1728.85 J, the temperature of the […]

Q.17 The maximum number of electrons that can be accommodated in the shell withn = 2 is ________ (in integer).(Given: n = principal quantum number) The maximum number of electrons […]

Q.16 The CORRECT option(s) of Y for the following reaction is/are The correct option for Y is the aldehyde (A), while (B), (C) and (D) do not give 2,4‑dinitrophenylhydrazone as […]