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ENTRANCE TEST – 2011 Multiple Questions and Answers.
| 6. | The ability of an atom in a covalent bond to attract the bonding electrons is called: | ||
| A. | Ionization energy | ||
| B. | Ionic bond energy | ||
| C. | Electronegativity | ||
| D. | Electron affinity | ||
| 7. | The paramagnetic character of a substance is due to: | ||
| A. | Bond pairs of electrons | ||
| B. | Lone pairs of electrons | ||
| C. | Unpaired electrons in atom or molecule | ||
| D. | Paired electrons in valence shells of electrons | ||
| 8. | Lattice energy of an ionic crystal is the enthalpy of: | ||
| A. | Combustion | ||
| B. | Dissociation | ||
| C. | Dissolution | ||
| D. | Formation | ||
| 9. | In standard enthalpy of atomization, heat of the surrounding: | ||
| A. | Remains unchanged | ||
| B. | Increases | ||
| C. | Increases than decreases | ||
| D. | Decreases | ||
| 10. | Mole fraction of any compound us the ratio of moles of all components in a: | ||
| A. | Compound | ||
| B. | Solution | ||
| C. | Molecule | ||
| D. | Solid | ||
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