SINDH MDCAT 2019 Mdcat 2019 ( PART 6) 1. The ph of 10:3 mol dm^-3 of an aqueous solution H2SO4 is: 3.0 2.0 2.7 1.5 2. The oxidation state of CI in HClO4 +7 +5 -1 -7 3. In a zero order reaction, the rate is independent of: Temperature of reaction Concentration of reaction Concentration of products Catalyst used 4. Which one of the following is NOT a nueleophile? CN- BF3 NH3 H2S 5. Which of the following molecules have zero dipole moments? BF3 CHCL3 NH3 H2O 6. The ligand field effect splits live degenerate d-orbitals into two sets with different energies, the pair of high energy degenerate orbitals is: dx^2-y^2, dy^2 dxy, dyz dyz, dxz dx^2, dy^2, dz^2 7. The change in heat energy of a chemical reaction at constant temperature and pressure is called: Internal energy change Heat of sublimation Heat of formation Enthalpy change 8. A catalyst increases the rate of reaction by: Decreasing the concentration of reactants Decreasing the temperature Increasing the temperature Decreasing the activation energy 9. The unit cell parameters of monoclinic system are : B A D C 10. Which of the following will have maximum value of heat of hydration? Na+ Ca+^2 Mg+^2 Cs+ Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
