MCAT Chemistry Review: Chemical Bonds

HappyOwl
Quiz by , created about 5 years ago

Third Year MCAT Quiz on MCAT Chemistry Review: Chemical Bonds, created by HappyOwl on 05/20/2014.

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HappyOwl
Created by HappyOwl about 5 years ago
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Question 1

Question
Which of the following has the longest bond?
Answer
  • H-F
  • H-I
  • H-Cl
  • H-Br

Question 2

Question
Which of the following has the longest bond?
Answer
  • H-F
  • H-I
  • H-Cl
  • H-Br

Question 3

Question
Which of the following is the shortest bond?
Answer
  • H-S
  • H-O
  • H-F
  • H-C

Question 4

Question
Which of the following is the strongest bond?
Answer
  • Mg-O
  • C-H
  • Na-Na
  • H-H

Question 5

Question
Which of the following is the strongest covalent bond?
Answer
  • C-H
  • C-F
  • C-N
  • C-O

Question 6

Question
What is the relationship between bond dipole and bond strength?
Answer
  • Bonds with larger dipoles tend to be weaker than those without dipoles.
  • Bonds with larger dipoles tend to be stronger than those without dipoles.
  • There is no relationship.
  • None of the above

Question 7

Question
Which of the following is the largest?
Answer
  • P
  • Cl-
  • K+
  • Cannot be determined

Question 8

Question
Predict the formula of magnesium argonide.
Answer
  • MgAr
  • MgAr2
  • Mg2Ar
  • None of the above

Question 9

Question
Predict the formula of magnesium argonide.
Answer
  • MgAr
  • MgAr2
  • Mg2Ar
  • None of the above

Question 10

Question
If two atoms are bonded together, one with six valence electrons, the other with four, how many electrons must they share for both to achieve a full octet?
Answer
  • 6
  • 8
  • 3
  • 2

Question 11

Question
What is the formal charge on boron in BF4 -?
Answer
  • 1
  • -1
  • 0
  • None

Question 12

Question
Explain why the Lewis structure for SF6 has twelve electrons around sulfur instead of eight.
Answer
  • Such a Lewis structure violates the octet rule and is incorrect.
  • Sulfur has a formal charge of -6 because S is in Group 6.
  • Sulfur can have an expanded octet.
  • None

Question 13

Question
What is the molecular geometry of I3 -?
Answer
  • Linear
  • Trigonal
  • Bent
  • Trigonal Bipyramidal