Chem101 Molecular Models Worksheet By Dr. Cheng-Yu Lai With Answer Key Page 3
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182014Spring CHEM101 Ch9-10 Review Worksheet
Modified by Dr. Cheng-Yu Lai,
11) Identify the shortest bond.
A) single covalent bond
B) double covalent bond
C) triple covalent bond
D) all of the above bonds are the same length
Answer: C
12) Identify the weakest bond.
A) single covalent bond
B) double covalent bond
C) triple covalent bond
D) all of the above bonds are the same strength
Answer: A
13) Identify the strongest bond.
A) single covalent bond
B) double covalent bond
C) triple covalent bond
D) all of the above bonds are the same strength
Answer: C
14) Identify the number of bonding pairs and lone pairs of electrons in water.
A) 1 bonding pair and 1 lone pair
B) 1 bonding pair and 2 lone pairs
C) 2 bonding pairs and 2 lone pairs
D) 2 bonding pairs and 1 lone pair
E) 3 bonding pairs and 2 lone pairs
Answer: C
15) Identify the compound with the largest dipole moment in the gas phase.( calculate the electron negativity
difference)
A) Cl 2
B) ClF
C) HF
D) LiF
Answer: D
16) Identify the compound with the smallest dipole moment in the gas phase.
A) Cl 2
B) ClF
C) HF
D) LiF
Answer: A
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