I. Analyze the following statements, Shade A if the statement is True, or B IF it is False. 1. Water, with a bent molecular shape, is classified as a polar molecule. 2. Hydrogen cyanide [HCN] exhibits a linear geometry. 3. Fluorine has the greatest electronegativity while cesium and francium have the least electronegativity value. 4. The general trend of electronegativity as you move from top to bottom of the periodic table is increasing. 5, Sulfur hexafluoride (SF.) has six bonded electrons and no lone pair in its central atom. Il. Categorize the following characteristics. Shade C if it pertains to polar molecules, or D if it Is a non-polar molecule. 6. high boiling point 7. low vapor pressure B. low surface tension 9. high volatility 10. Insoluble in water Ill. Analyze the following statements/ questions. Choose the letter of the correct answer. 11. Which description below correctly describes polar molecules? A. have polar bonds present B. the polar bonds are arranged so that they do not cancel C. lone pairs on the central atom are arranged so that they do not cancel D. lone pairs on the central atom are arranged so that they can be cancelled out 2. What do you call the relative ability of a bonded atom to attract 17. By principle, polar molecules have a relatively high melting point Shared electrun pairs? than non polar molecules because they have a strongis A electron affinity internalocular force. Which of the following molecules has high B. electronegativity melung paint? C. lunkzation energy A. BCI D. metallic property D. CHCH 13. What is the molecular shape of CHBry? LB It is the energy required to increase the surface and of a substance A. linear C. trignnal planar by a unit amount. B. letrahedral I. trigonal bipyramidal t wpor pressure A viscosity D. surface tension 14. Which of the following molecules DO NOT have polar covalent Lands? 19, Which of the following statements is TRUE about nonpolar A NH. colecules? I CS D. HEr A have high boiling points A have lage melting point 5. From the gives Lewis structure of NHs how many sonbonding pair/'s C. lane low surface tension of electron are around the central atom? La have law capor pressure A. II H - N-H H 20 From the chooses below, which Is NOT an euciple of intermolecular forces of attraction? C covalent band 1. Which of the following [intermolecular forces of attraction] INEis is B. dipole dipale O, London Pres considered as the weakest? C dipole-dipole B H Landing D. Landon forces