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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 […]

Q.21 In a simple microscope, _______.(A) a lens with negative power is used(B) the focal length of the lens is less than the least distance for clear vision(C) the focal […]

Q.20 Which one of the following statements is a correct description of modes of action of taxol and colchicine? (A) Taxol causes DNA damage and colchicine prevents microtubule formation (B) […]

Q.19 Which one of the following parameters changes upon doubling the enzyme concentration? (A) KM (B) V max (C) k cat (D) Keq Vmax changes when enzyme concentration doubles in […]