AP QUIZZES - AP TOPIC 8 Bonding SET E
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QUESTION 1. At room temperature and pressure, bromine is a liquid that consists of diatomic molecules. Which statement is consistent with these observations?

(A) Bromine is a polar molecule
(B) There are weak attractions between the atoms in a bromine molecule
(C) There are weak attractive forces between bromine molecules in liquid bromine
(D) Bromine is very electronegative
(E) Bromine's covalent bonds are weak

QUESTION 2. Which of the following ionic compounds would have the most covalent character?

(A) NaCl
(B) CsCl
(C) MgCl2
(D) RbCl
(E) CaCl2

QUESTION 3. Which of the following covalent species would one expect to have the greatest ionic character?

(A) HF
(B) HCl
(C) HI
(D) HBr
(E) H2

QUESTION 4. What accounts for the fact that the carbonate ion exhibits carbon-oxygen bond lengths that are intermediate in length between a single carbon-oxygen bond and a double carbon-oxygen bond?

(A) Covalent bonding
(B) Dative covalent bonding
(C) Resonance
(D) Expanded octets
(E) Electron deficiency

QUESTION 5. Which of the following accounts for the fact that the boiling point of Hydrogen fluoride (19.5 Celsius) is significantly higher than that of hydrogen chloride (- 84 Celsius) despite the fact that HCl is the larger molecule?

(A) HCl has intermolecular hydrogen bonds
(B) HF has intermolecular hydrogen bonds
(C) HCl has greater London dispersion forces than HF
(D) HF has greater London dispersion forces than HCl
(E) None of the above




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