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WorksheetsIMF Test Review
Total questions: 20
Worksheet time: 12mins
A weak IMF will result in a
high melting point
high viscosity
high surface tension
low surface tension
Which container has the greatest Intermolecular Force between Molecules?
red
yellow
blue
Which compound has the strongest IMF
HOH
CH4
C2H6
CH3OH
Xenon has a greater atomic weight than neon. Xe has 131.3 amu while
Ne has 20.2 amu. The boiling points are 166.1K and 27.3K, respectively.
How do intermolecular forces account for the difference?
Dipole-dipole interaction is greater in Xe than Ne so more energy is needed to break the bonds.
H-bonding is greater for substances with higher atomic weight so greater energy is needed to change Xe to vapor.
Atomic weight increases the chance of lesser dispersion forces so greater energy is needed to separate Xe atoms to change to vapor
London dispersion forces are greater in substances with heavier atomic weight so greater energy is needed to separate
the atoms of Xe than Ne.
Identify the IMF exist in CH4
dipole-dipole forces
london forces
ion-dipole forces
hydrogen bonding
Identify the IMF exist in NH3
london dispersion forces
ion-dipole forces
dipole-dipole forces
hydrogen bonding
Identify the IMF exist in HBr
london dispersion forces
hydrogen bonding
dipole-dipole forces
ion-dipole forces
To form a hydrogen bonding, Hydrogen needs to attract to the highly electronegative elements such us _____, _____, and ____
chlorine, fluorine, and oxygen
fluorine, oxygen, and sulfur
fluorine, bromine, and oxygen
fluorine, oxygen, and nitrogen
Dipole-Dipole forces are stronger than _______ and weaker than _________ interactions.
london dispersion, ion-dipole
hydrogen bonding, london dispersion
ion-dipole, london dispersion
Intermolecular Forces are the forces that exist
Between two or more molecules
Within a single molecule
Only in molecules containing carbon
In all molecules
Which substance has the weakest intermolecular forces?
Substance A, boiling point of 75 °C
Substance B, boiling point of 105 °C
Substance C, boiling point of 25 °C
Substance d, boiling point of 45 °C
___________ a molecule containing two “poles,” or regions of opposite charge.
Dipole
Polarity
Nonpolar
North Pole
___________ a measure of how strongly one atom attracts a shared pair of
electrons. Values range from 0.7 to 4.0, and are unitless.
Electronegativity
Intermolecular froces
Intramolecular forces
Polarity
________________ an intermolecular force of attraction that occurs when a temporary dipole of one atom induces polarity in a neighboring atom. They form due to random fluctuations in the density of the electron cloud surrounding the nucleus. The weakest type of intermolecular force.
London Dispersion Forces
Hydrogen Bonding
Dipole-Dipole
Ionic
_____________ bond characterized by equal sharing of electrons. The atoms in a bond have the same electronegativity (or a difference less than or equal to 0.4).
Nonpolar Covalent
Polar Covalent
Ionic
Metallic
____________ bond characterized by unequal sharing of electrons. The atoms in a bond have an electronegativity difference greater than 0.4 and less than 2.0. Each of the atoms in the bond will either have a partial positive (δ+) or a partial negative (δ–) charge.
Polar Covalent
Nonpolar Covalent
Metallic
Ionic
__________ bond formed by the attraction between two oppositely charged ions. These are the most polar type of bond since valence electrons are completely transferred from one atom to another. These bonds occur if the electronegativity difference is greater than/equal to 2.0.
Ionic
Polar Covalent
Nonpolar Covalent
Metallic
Which of the following are bonds that form between atoms within a compound? Select all that apply.
hydrogen bonding
ionic bonding
ion-dipole
single bond
