Name: Class: Date: 2) Which one of the following exhibits dipole-dipole attraction between molecules? A) XeF 4 B) AsH 3 C) CO 2 D) BCl 3 E) Cl 2

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1 Name: Class: Date: IM Bonding 1) In liquids, the attractive intermolecular forces are. A) very weak compared with kinetic energies of the molecules B) strong enough to hold molecules relatively close together C) strong enough to keep the molecules confined to vibrating about their fixed lattice points D) not strong enough to keep molecules from moving past each other E) strong enough to hold molecules relatively close together but not strong enough to keep molecules from moving past each other 2) Which one of the following exhibits dipole-dipole attraction between molecules? A) XeF 4 B) AsH 3 C) CO 2 D) BCl 3 E) Cl 2 3) Which one of the following exhibits dipole-dipole attraction between molecules? A) PH 3 B) CCl 4 C) Br 2 D) CO 2 E) C 10 H 22 4) Of the following substances, only has London dispersion forces as its only intermolecular force. B) NH 3 C) H2S D) CH 4 E) HCl 5) Of the following substances, only has London dispersion forces as its only intermolecular force. A) H 2 O B) CCl 4 C) HF D) CH 3 COOH E) PH 3 1

2 Name: 6) Of the following substances, only has London dispersion forces as the only intermolecular force. B) NH 3 C) H 2 S D) Kr E) HCl 7) Which one of the following should have the lowest boiling point? A) PH 3 B) H 2 S C) HCl D) SiH 4 E) H 2 O 8) Which one of the following should have the lowest boiling point? B) H 2 S C) NH 3 D) HCl E) CH 4 9) Of the following substances, has the highest boiling point. A) H 2 O B) CO 2 C) CH 4 D) Kr E) NH 3 10) Of the following substances, has the highest boiling point. A) CH 3 CH 2 OH B) C 2 H 6 C) N 2 D) F 2 E) HOCH 2 CH 2 OH 11) Of the following, has the highest boiling point. A) N 2 B) Br 2 C) H 2 D) Cl 2 E) O 2 2

3 Name: 12) In which of the following molecules is hydrogen bonding likely to be the most significant component of the total intermolecular forces? A) CH 4 B) C 5 H 11 OH C) C 6 H 13 NH 2 D) CH 3 OH E) CO 2 13) Which of the following has dispersion forces as its only intermolecular force? A) CH 4 B) HCl C) C 6 H 13 NH 2 D) NaCl E) CH 3 Cl 14) When NaCl dissolves in water, aqueous Na + and Cl - ions result. The force of attraction that exists between Na + and H 2 O is called a(n) interaction. A) dipole-dipole B) ion-ion C) hydrogen bonding D) ion-dipole E) London dispersion force 15) Which one of the following derivatives of ethane has the highest boiling point? A) C 2 Br 6 B) C 2 F 6 C) C 2 I 6 D) C 2 Cl 6 E) C 2 H 6 16) What is the predominant intermolecular force in CBr 4? A) London-dispersion forces B) ion-dipole attraction D) dipole-dipole attraction E) hydrogen-bonding 17) What is the predominant intermolecular force in CH 3 CH 2 OH? A) London-dispersion forces B) ion-dipole attraction D) induced dipole-dipole attraction E) hydrogen-bonding 3

4 Name: 18) The intermolecular force(s) responsible for the fact that CH 4 has the lowest boiling point in the set CH 4, SiH 4, GeH 4, SnH 4 is/are. A) hydrogen bonding B) dipole-dipole interactions C) London dispersion forces D) mainly hydrogen bonding but also dipole-dipole interactions E) mainly London-dispersion forces but also dipole-dipole interactions 19) The predominant intermolecular force in (CH 3 ) 2 NH is. A) London dispersion forces B) ion-dipole forces D) dipole-dipole forces E) hydrogen bonding 20) The predominant intermolecular force in AsH 3 is. A) London dispersion forces B) ion-dipole forces D) dipole-dipole forces E) hydrogen bonding 21) C 12 H 26 molecules are held together by. A) ion-ion interactions B) hydrogen bonding C) ion-dipole interactions D) dipole-dipole interactions E) dispersion forces 22) Which of the following molecules has hydrogen bonding as its only intermolecular force? A) HF B) H 2 O C) C 6 H 13 NH 2 D) C 5 H 11 OH E) None, all of the above exhibit dispersion forces. 23) Which of the following molecules has hydrogen bonding as its only intermolecular force? A) NH 3 B) H2O C) C 3 H 7 OH D) HOCH 2 CH 2 OH E) None, all of the above exhibit dispersion forces. 4

5 Name: 24) The dissolution of gases in water is virtually always exothermic because. A) one of the two endothermic steps (separation of solute particles) in the solution-formation process is unnecessary B) the exothermic step in the solution-formation process is unnecessary C) gases react exothermically with water D) neither of the two endothermic steps in the solution-formation process is necessary E) all three steps in the solution-formation process are exothermic 25) The phrase "like dissolves like" refers to the fact that. A) gases can only dissolve other gases B) polar solvents dissolve polar solutes and nonpolar solvents dissolve nonpolar solutes C) solvents can only dissolve solutes of similar molar mass D) condensed phases can only dissolve other condensed phases E) polar solvents dissolve nonpolar solutes and vice versa 26) Which one of the following substances would be the most soluble in CCl 4? A) CH 3 CH 2 OH B) H 2 O C) NH 3 D) C 10 H 22 E) NaCl 27) Which one of the following substances would be the least soluble in CCl 4? A) CH 3 CH 2 OH B) H 2 O C) NH 3 D) C 10 H 22 E) NaCl 28) Which of the following substances is more likely to dissolve in water? A) HOCH 2 CH 2 OH B) CHCl 3 C) D) CH 3 (CH 2 ) 8 CH 2 OH E) CCl 4 5

6 Name: 29) Which of the following substances is more likely to dissolve in CH 3 OH? A) CCl 4 B) Kr C) N 2 D) CH 3 CH 2 OH E) H 2 30) Which one of the following is most soluble in water? B) CH 3 CH 2 CH 2 OH C) CH 3 CH 2 OH D) CH 3 CH 2 CH 2 CH 2 OH E) CH 3 CH 2 CH 2 CH 2 CH 2 OH 31) Which one of the following is most soluble in hexane (C 6 H 14 )? B) CH 3 CH 2 CH 2 OH C) CH 3 CH 2 OH D) CH 3 CH 2 CH 2 CH 2 OH E) CH 3 CH 2 CH 2 CH 2 CH 2 OH 32) Which of the following choices has the compounds correctly arranged in order of increasing solubility in water? (least soluble to most soluble) A) CCl 4 < CHCl 3 < NaNO 3 B) CH 3 OH < CH 4 < LiF C) CH 4 < NaNO 3 < CHCl 3 D) LiF < NaNO 3 < CHCl 3 E) CH 3 OH < Cl 4 < CHCl 3 6

7 IM Bonding Answer Section 1) ANS: E PTS: 1 DIF: 2 REF: Sec ) ANS: B PTS: 1 DIF: 3 REF: Sec ) ANS: A PTS: 1 DIF: 3 REF: Sec ) ANS: D PTS: 1 DIF: 2 REF: Sec ) ANS: B PTS: 1 DIF: 2 REF: Sec ) ANS: D PTS: 1 DIF: 2 REF: Sec ) ANS: D PTS: 1 DIF: 3 REF: Sec ) ANS: E PTS: 1 DIF: 3 REF: Sec ) ANS: A PTS: 1 DIF: 3 REF: Sec ) ANS: E PTS: 1 DIF: 3 REF: Sec ) ANS: B PTS: 1 DIF: 3 REF: Sec ) ANS: D PTS: 1 DIF: 3 REF: Sec ) ANS: A PTS: 1 DIF: 2 REF: Sec ) ANS: D PTS: 1 DIF: 2 REF: Sec ) ANS: C PTS: 1 DIF: 2 REF: Sec ) ANS: A PTS: 1 DIF: 2 REF: Sec ) ANS: E PTS: 1 DIF: 2 REF: Sec ) ANS: C PTS: 1 DIF: 2 REF: Sec ) ANS: E PTS: 1 DIF: 2 REF: Sec ) ANS: D PTS: 1 DIF: 2 REF: Sec ) ANS: E PTS: 1 DIF: 2 REF: Sec ) ANS: E PTS: 1 DIF: 2 REF: Sec ) ANS: E PTS: 1 DIF: 2 REF: Sec ) ANS: A PTS: 1 DIF: 2 REF: Sec ) ANS: B PTS: 1 DIF: 1 REF: Sec ) ANS: D PTS: 1 DIF: 3 REF: Sec ) ANS: E PTS: 1 DIF: 3 REF: Sec ) ANS: A PTS: 1 DIF: 3 REF: Sec ) ANS: D PTS: 1 DIF: 3 REF: Sec ) ANS: A PTS: 1 DIF: 3 REF: Sec ) ANS: E PTS: 1 DIF: 3 REF: Sec ) ANS: A PTS: 1 DIF: 3 REF: Sec