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Q.31 Pick the correct statement(s) with respect to the inter-conversion of the topoisomers of a circularly closed double stranded DNA. (A) Only one strand needs to be cut (B) Both […]

Q.30 Among the following species, the metal center that has the highest number of unpaired electrons is _______.(A) VCl₄ (B) Ni(CO)₄ (C) [AuCl₄]⁻ (D) [CdBr₄]²⁻ VCl₄ has the metal center […]

Q.29 H₂ reacts with trans-(Ph₃P)₂Ir(CO)Cl to primarily produce _______. The complex trans-(Ph₃P)₂Ir(CO)Cl (Vaska’s complex) undergoes oxidative addition of H₂ to give a six‑coordinate dihydride iridium(III) product, where both hydrides are […]

Q.28 pKa increases in the order _______.(A) HN₃ > NH₃OH⁺ > N₂H₅⁺ > NH₃ (B) NH₃OH⁺ > N₂H₅⁺ > HN₃ > NH₃ (C) NH₃ > NH₃OH⁺ > N₂H₅⁺ > HN₃ […]

Q.27 Match the entries in Group I with entries in Group IIGroup I Group II (P) Bacteria (i) Malaria (Q) Virus (ii) Tuberculosis (R) Protozoa (iii) Influenza (S) Autoantibodies (iv) […]

Q.26 According to the kinetic theory of gases, the average energy of a diatomic molecule in an ideal gas depends on _______. (A) mass of each atom and the temperature […]

Q.25 Which one of the following remains unchanged when light waves enter water from air?(A) Wavelength (B) Wavenumber (C) Frequency (D) Intensity Frequency remains unchanged when light waves enter water […]

Q.24 Indole acetic acid (IAA) is involved in ______.(A) gravitropism (B) flowering (C) ripening (D) senescence Indole-3-acetic acid (IAA), the primary natural auxin, primarily mediates tropic responses like gravitropism through […]

Q.23 A particle starting from rest is subjected to a constant force. The plot of distance traveled along thedirection of the force as a function of time is a/an ______.(A) […]

Q.22 Which one of the following statements is INCORRECT with respect to bacterial conjugation?(A) It facilitates transfer of genetic material(B) It requires flagellum(C) It can spread antibiotic resistance(D) It can […]