Category: TIFR Previous Year Question Papers 2020 Biology With Answer Key Download

10. A monobasic acid has pKa = 5.2. Calculate the pH at which the ratio between the acid and the anion (A-) will be 1:50. a. 3.5 b. 5.7 c. […]

9. Choose the molecule that has polar bonds but does NOT orient within an electric field. a. HCl b. Cl2 c. CCl4 d. NH3 CCl4 contains polar bonds but remains […]

8. What is the hybridisation of triplet carbene? a. sp3 b. sp2 c. sp2 and sp d. sp The hybridisation of triplet carbene involves sp² and sp configurations, making option […]

7. Among the following salts which has the highest water solubility? a. NaClO4 b. CsClO4 c. LiClO4 d. KClO4 Which Perchlorate Salt Has Highest Water Solubility: NaClO4, CsClO4, LiClO4, or […]

6. In the following structure The ease of breaking phosphate bonds follows the order a. I > II > III b. III > II > I c. II > III> […]

5. Two solutions of the same molecule, with concentrations of 10-3 M and 5×10-4 M, are kept in two different cuvettes with path lengths 1 cm and 2 cm, respectively. […]

4. Which of the following can chelate metals, among salicylaldehyde, salicylic acid, and o- nitrophenol? a. salicylaldehyde b. salicylic acid c. o-nitrophenol d. all of these All three compounds—salicylaldehyde, salicylic […]

3. Which element has the greater difference between the first ionization energy and the second ionization energy, among Potassium, Calcium and Gallium? a. Potassium b. Calcium c. Gallium d. All […]

2. The product formed is an isobar if there is a. 1 α emission b. 1 β emission c. 1 α and 1 β emission d. 2 α and 1 […]

1. The types of bonds present in NH4Cl are: a. ionic, covalent and coordinate b. only ionic c. ionic and covalent d. covalent and coordinate NH4Cl Bonds: Ionic, Covalent, Coordinate […]