GGCCHEM 1212K NHAAK 01 CHAPTER,09&101 2018 GGCICHEM1212Section Chapter 9410 nica

Question

GGCCHEM 1212K NHAAK 01 CHAPTER,09&101 2018 GGCICHEM1212Section Chapter 9410 nical Bonding 1 4 : Lewis Theory 1. Which contains ionic bonds? B) CaCl2 D)HC 2. Which ionic compound would be expected to have the highest lattice energy? 8) Mgo C) Al203 D) cO2 3 Choose the bond below that is least polar A) P-F E)c-a B) C-Br C) C-F D)CI Choose the bond below that is most polar. A) C-N E) F-F 4 B) C-F c) c-o D) cc 5. Covalent bonding is a A) gain of electrons D) sharing of electrons. B) loss of electrons. transfer of electrons. 6. Which molecule or compound below contains a pure covalent bond? B) SCl6 c) Cl2 D) PF3 E) Nac 7. A:A represents A) a double bond. B) a quadruple bond. C) one lone pair of electrons. D) two lone pairs of electrons. 8. Place the following elements in order of increasing electronegativity. Sr 9. Assign formal charges to each atom in the resonance form for SOCI2 given below. :o

Explanation / Answer

ANSwer 1. b) CaCl2

an ionic bond is formed between a metal and a nonmetal. Calcium is from group 2 (an alkali earth metal), having a +2 charge. Chloride is from the halogens having a -1 charge (halogens are non metals).

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