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3. Which amino acid may produce following titration curve profile? a. Phe b. His c. Val d. Leu Histidine is the amino acid that produces the given titration curve with […]

2. The pKa of a monobasic organic acid is 4.2. The pH at which 95% of the acid will be in ionized form is: a. 5.02 b. 5.38 c. 2.92 […]

1. 700 ml of colourless solution is present in each of two bottles, A and B. The label on A reads, 1 M NaCl, while that on B reads 1 […]

15. The velocity of blood in an artery can be determined using the Doppler effect with ultrasound. Blood in an artery is moving directly towards a piezoelectric transducer, which emits […]

14. Unpolarized light is incident on a pair of ideal linear polarizers whose transmission axes make an angle of 45° with each other. The transmitted light intensity through both polarizers […]

13. A simple pendulum of length L and mass M is initially at rest. You want to give it an initial kick so that it subsequently swings up by exactly […]

12. The acceleration due to gravity on the surface of the Earth is about six times its value on the Moon. If the density of the Earth is 1.67 times […]

11. Due to friction with molecules of the surrounding solution, particles sedimenting in a mixture reach terminal velocity when subjected to ultracentrifugation. The sedimentation coefficient (S) for a particle is […]

10. A satellite takes 24 hours to orbit the Earth. It is replaced for a newer one that is carrying more modern equipment making it 2 times lighter. The new […]

9. An iron bar and a brass bar of equal length and cross-sectional area, are joined at one end. A tensile force is applied to the free ends as shown. […]