Q.1
Determine the type of intermolecular force present in SiO2.
  • dipole dipole
  • Van Der Waals forces
  • ionic
  • covalent network
Q.2
A nitrogen molecule (Nhas how many covalent bonds between the 2 nitrogen atoms?
  • 1
  • 2
  • 3
  • 4
Q.3
Which substance would have the weakest intermolecular forces of attraction?
  • CH4
  • NaCl
  • H2O
  • MgF2
Q.4
Hydrogen bonding occurs in molecules when ___________________.
  • a hydrogen atom forms a covalent bond with another atom.
  • a hydrogen atom in a molecule forms a bond with any atom.
  • a hydrogen atoms form an ionic bond with another atom on an adjacent molecule.
  • a hydrogen atom bonded to F, O or N is attracted to an electron pair on a F, O or N atom on an adjacent molecule.
Q.5
All molecules have London forces between them, but dipole-dipole and hydrogen bonding are so much stronger that when they are present we can ignore London forces. Which of these has ONLY London forces?
  • I2
  • NH3
  • OCl2
  • SH2
Q.6
CHECK ALL THAT APPLY:Check all statements that are true of Van der Waals Interactions.
  • Very Weak
  • Brief Interactions
  • Occur when molecules are very close.
  • All of above
Q.7
CHECK ALL THAT APPLY:Electronegative atoms that are often involved in Hydrogen Bonds.
  • Nitrogen
  • Fluorine
  • Oxygen
  • All of above
Q.8
Hydrogen Bonds typically occur between atoms of hydrogen involved in this type of bond:
  • Ionic
  • Nonpolar Covalent
  • Polar Covalent
  • Nonpolar AND Polar Covalent
Q.9
TRUE OR FALSE:Hydrogen bonds are very strong interactions between two atoms.
  • True
  • False
Q.10
What instruments were used in this research paper?
  • Gas Chromatography
  • Mass Spectrometry
  • X-ray crystallography and Calorimetry
  • SDS-PAGE
Q.11
In short, what is the hypothesis of the paper?
  • Hydrogen bonds are strongest in peptide-peptide interactions.
  • Breaking a hydrogen bond requires 5-6 kcal/mol of energy.
  • A molecule is satisfied if hydrogen bonding occurs within the structure or within solvent.
  • This is a waste of time.
  • None of the above
Q.12
Which is thermodynamically favored, peptide-peptide bonds or peptide-water bonds?
  • Peptide-Peptide bonds
  • Intrapeptdie bonds
  • Peptide-Water bonds
  • Interpeptide bonds
  • Both A & B
Q.13
An Intrapeptide bond is a bond between which of the following?
  • Peptide-Hydrogen bond
  • Peptide-Water bond
  • Peptide-Peptide bond
  • Peptide-Amino acid sequence
  • None of the above
Q.14
Name one author of the paper discussed.
  • Dr. Wilent
  • Dr. Patrick Fleming
  • Dr.Seuss
  • Chase Utley
Q.15
When was the reseacrh paper written?
  • 1776
  • 1955
  • 2004
  • 2005
Q.16
Simulations were ran at which temperature?
  • 300 K
  • 273 K
  • Room Temperature
  • 1,000 K
Q.17
Simulations were ran at which of the following time frame?
  • 0.1 psec for 100 sec
  • Once every 24 hrs
  • No frames existed
  • 30 sec
Q.18
The Protein Database (PDB) survey shows that.......polar groups have Hydrogen Bonds.
  • 10%
  • 90%
  • 50%
  • 12%
Q.19
Ice has ___________ density as compared to water.
  • higher
  • lower
  • the same
Q.20
What is the maximum number of hydrogen bonds one molecule of water can form?
  • 1
  • 2
  • 3
  • 4
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