SINDH MDCAT 2016 PAPER MDCAT 2016 ( PART 5 ) 1. 1 dm^3 of methyl alcohol is heated over Cu at 300 C we get: 1.5 dm^3 0.1 dm^3 1 dm^3 2.5 dm^3 2 dm^3 2. Cathode rays: Are independent of the nature of the gas Are light in the case of smaller atoms Depend on the nature of the gas Arc more intense in the case of radioactive atoms Are heavy in the case of bigger atoms 3. Pauli Exclusion Principle states that no two electrons can have the entire four quantum numbers same. According to this principle which of the following pairs of atoms shows difference in their Principle Quantum Number? H & He Na & Mg Na & K Li & Be K &Ca 4. C2H5 -OH boils at a higher temperature than CH3 -O- CH3 through both have the same molecular formula C2H60. The reason is the alcohol has: H-bonding Electrovalent bonding Covalent bonding Polar bonding Ionic bonding 5. For a 51% Ionic molecule, the difference in EN is: 1.9 2.1 1.7 1.5 2 6. At 100 C, 0.1 mole of N204, is heated in a one dm^3 flask. At equilibrium concentration of NO2 was found to be 0.12 moles. Calculate Kc for the reaction. 0.02 0.36 0.012 0.21 0.12 7. In the commercial electrochemical process for aluminum extraction, the electrolyte used is: Al (OH)3 in NaOH solution A molten mixture of Al203 and Na3 AlF6 A molten mixture of AlO(OH) and Al(OH)3 An aqueous solution of Al2(S04)3 8. Balmer series is important as: It lies in visible region It was first discovered It gives sharp lines It is the first series It has minimum energy 9. Which of the following Compounds is expected to be coloured? MgF2 CuCl CuF2 Ag2 SO4 10. Where A is A D B C Loading … Pages: 1 2 3 4 5 6 7 8 9 10
