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MDCAT Chemistry Chapter 20 Macromolecules Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | The solubility product of AgCl is 2.0 x 10(-10) mol2 dm(-6). The maximum concentration Ag+ ions in the solution is: |
1.41 × 10(-5) mol. dm(-3) 1.41 × 10(-10) mol. dm(-3) 2.0 × 10(-10) mol. dm(-3) 4.0 × 10(-20) mol. dm(-3) |
| 2 | In a given system, water and ice are in equilibrium, if the pressure is applied to the above system then | Morc ice is formed Amount of ice and water will remain the same more ice is melted both A and B |
| 3 | The decomposition of N2O4 to NO2 is carried out at 280°C in chloroform. When quilibrium is reached. 0.2 moles of N2O4 and 0.02 mole of NO2 are present in 1:1 ratio The equilibrium constant for the reaction N2O4------> 2NO2 is | 0.01 0.001 0.02 0.002 |
| 4 | For the reaction H2(g) +I2 (g) <---------> 2Hl(g). The equilibrium constant changes with | Total pressure Catalyst Concentration of H2 and I2 Temperature |
| 5 | The solubility of Fe(OH)3 is 'x' mole per dm3. Its Ksp would be | 9X3 3X4 27X4 9X4 |
| 6 | In a saturated solution of AgCl, the molar concentration of Ag+ and Cl- is 1.0x10(-5)M each. What is the value of Ksp | 1.0x10(-5) 1.0x10(-15) 0.1x10(-5) 1.0x10(-10) |
| 7 | If the concentration of salt is greater than the acid in buffer solution, then the | pH = pKa pH = pKb pH > pKa pH < pKb |
| 8 | The oxidation of SO2 to SO3 is exothermic reaction. The yield of SO3 will be maximum if | Temperature is increased and pressure is kept constant Temperature is reduced and pressure is increased Both temperature and pressure are increased Both temperature and pressure are increased |
| 9 | Consider the reaction PCI5 (g) <---------> PCl3 (g) +Cl2 (g) in a closed container at equilibrium. At a fixed temperature, what will be the effect of adding more PCl5 on the equilibrium constant |
It increases It remains unaffected It decreases Can't be predicted without Ki |
| 10 | In the reaction A2 (g) + 4B2 (g) <-----------> 2AB4 (g) such that ∆H < 0, the formation of AB4(g) will be favoured at | Low temperature and high pressure Low temperature and low pressure High temperature and low pressure High temperature and high pressure |
| 11 | In the reaction A2 (g) + 4B2 (g) <-----------> 2AB4 (g) such that ∆H < 0, the formation of AB4(g) will be favoured at | Low temperature and high pressure Low temperature and low pressure High temperature and low pressure High temperature and high pressure |
