Tag: TIFR Previous Year Question Papers Biology PYQ With Answer Key Download

11. Which of the following statements are true? a. Vmax of an enzyme remains constant with increasing enzyme concentrations. b. KM of an enzyme for a substrate remains constant with […]

10. If 1.14 Kg of octane are burned in the complete combustion reaction shown below, how many Kg of carbon dioxide will be produced (atomic mass of C, O and […]

9. How many chiral centres does this molecule below have: a. 2 b. 7 c. 8 d. 9 Introduction Exam questions like “How many chiral centres does this molecule below have?” frequently […]

8. In the below hydropathy plot of a protein, positive values are regions of the protein that are considered hydrophobic based on primary amino acid sequence. What type of protein […]

7. At 25 °C and zero ionic strength, water self-dissociation results in: Kw = [H3O+][OH-] = 1.0×10−14 If it is known that Kw increases with increasing temperature, what will be […]

6. Using the bond energy data given in the parenthesis, what would be the expected enthalpy for the following reaction H2(g) + F2 (g) à 2HF (g) (H-H: 432 kJ/mol; […]

5. 8.4 mg NaHCO3 powder was slowly added to 10 ml 0.03 M HCl in a 50ml beaker with stirring. After all effervescence has seized, what should be the pH […]

4. CH3CHO and C6H5CH2CHO can be distinguished chemically by: a. Tollen’s reagent test b. Fehling solution test c. Benedict test d. Iodoform test CH3CHO (acetaldehyde) and C6H5CH2CHO (phenylacetaldehyde) can be […]

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 […]