key4(1) - CHEM 1211K Test IV MULTIPLE CHOICE (3 points...

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CHEM 1211K Test IV MULTIPLE CHOICE (3 points each) 1) How many single covalent bonds must a silicon atom form to have a complete octet in its valence shell? A) 4 B) 3 C) 1 D) 2 E) 0 2) What is the maximum number double bonds that a carbon atom can form? A) 1 B) 4 C) 3 D) 2 E) 0 3) Of the atoms below, __________ is the least electronegative. A) Rb B) Si C) F D) Ca E) Cl 4) Given the electronegativities below, which covalent single bond is most polar? Element: H C N O Electronegativity: 2.1 2.5 3.0 3.5 A) C-H B) O-C C) N-H D) O-N E) O-H 5) Which of the following names is/are correct for the compound TiO 2 ? A) titanium oxide B) titanium oxide and titanium (IV) dioxide C) titanium (II) oxide D) titanium dioxide and titanium (IV) oxide E) titanium (IV) dioxide 6) The Lewis structure of N 2 H 2 shows __________. A) each hydrogen has one nonbonding electron pair B) a nitrogen-nitrogen triple bond C) each nitrogen has one nonbinding electron pair D) each nitrogen has two nonbinding electron pairs E) a nitrogen-nitrogen double bond 7) In the Lewis structure of ClF, the formal charge on Cl is __________ and the formal charge on F is __________. A) 0, 0 B) -1, -1 C) 0, -1 D) +1, -1 E) -1, +1 8) How many resonance forms can be drawn for CO 3 2- (carbon is the central atom)? A) 0 B) 2 C) 3 D) 4 E) 1 9) The molecular geometry of __________ is square planar. A) ICl
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key4(1) - CHEM 1211K Test IV MULTIPLE CHOICE (3 points...

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