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Q.53 The heat required to convert 2 kg of water at 20 °C in a calorimeter to steam at 100°C and at atmospheric pressure (1 atm) is _______ kJ. (Specific […]

Q.52 Km and Vmax of an enzyme preparation are 5 μM and 30 μM min–1 respectively.Considering, Ki value of competitive inhibitor is 60 μM, the velocity (V0) of thisenzyme–catalyzed reaction […]

Q.51 The ∆G ́ and K ́eq values of ATP hydrolysis are –32.34 kJ mol–1 and 4.6 x105,respectively. The ∆G ́ and K ́eq values of enzymatic hydrolysis of glucose–6–phosphate […]

Q.50 The value of lim (2x+6)/(x+3) is _____ . x–>-3 Common Misconception The limit \( \lim_{x \to -3} \frac{2x+6}{x+3} \) does not fail to exist as a finite number just […]

Q.49 The order of differential equation 𝑑3𝑦/dx3+2d2y/dx2-3dy/dx+6x4y=0 is ______. Order of Differential Equation d³y/dx³ + 2d²y/dx² − 3dy/dx + 6x⁴y = 0 Explained The order of the differential equation d³y/dx³ […]

Q.48 Whales can dive undersea to depths of 2 km. The pressure on the whale at this depth(ignoring atmospheric pressure) is _______ × 106 Pa. (Density of sea water = […]

Q.47 A massless ideal spring is hanging vertically. A sphere of mass of 500 g, suspendedfrom the spring, stretches the spring from its initial position by 50 cm when itreaches […]

Q.46 A restriction endonuclease has a recognition site of 3 bases. Assuming randomarrangement of nucleotides, the probability that this endonuclease will cut a pieceof DNA is _______ (rounded off to […]

Q.45 Among the five fragments given below,the number of fragment(s) accelerated to the analyzer tube in mass spectrometerwith electron ionization is/are _______. In electron ionization mass spectrometry, only positively charged fragments (molecular […]

Q.44 Among K+, Li+, Rb+, Cs+, the number of cation(s) having ionic radii more than Na+is/are _______. Among K⁺, Li⁺, Rb⁺, Cs⁺, four cations have ionic radii larger than Na⁺.​ […]