Which of the following is FALSE about intermolecular forces between molecules?

Must have permanent dipole moment before it can exist

It is also called London or Van Der Waals forces

Dipole dipole attraction between molecule

Also due to instantaneous dipole attraction between molecule

Factors affecting the strength of VDF and boiling point are

shape and molar mass of molecule

shape and surface area of molecule

The following statement is true for hydrogen bonding EXCEPT

Hydogen bonding is stronger than covalent bonding

It is a dipole dipole forces of attraction

Electronegative element like N, O and F must be present

ESF attraction bet H atom with lone pair electron from N,O,F

The following are requirement for hydrogen bonding EXCEPT

H atom bonded with lone pair electrons from Gp 7

H atom bonded to electronegative N, O and F

Electronegative element like N, O and F must be present

ESF attraction between H atom with lone pair electron from N,O,F

Arrange the boiling point of molecules (RMM given), from lowest to highest.

lowest H 2 - N 2 - CI 2 - H 2 O highest

lowest H 2 - N 2 - H 2 O - CI 2 highest

lowest H 2 - H 2 O - N 2 - CI 2 highest

lowest H 2 O - N 2 - H 2 - CI 2 highest

Arrange the boiling point for molecules (RMM given) from lowest to highest.

lowest HCI - HBr - HI- HF highest

lowest HF - HCI - HBr - HI highest

lowest HF - HBr - HCI - HI highest

lowest HCI - HF - HBr - HI highest

Why BCI 3 is non polar while NCI 3 is polar?

BCI 3 is symmetrical and bond polarity cancel

BCI 3 is symmetrical and bond polarity exist

BCI 3 does not have polar bonds, while NCI 3 does

BCI 3 is asymmetrical and bond polarity exist

Polarity IMFs

Authored by Charles Martinez

Chemistry

11th - 12th Grade

NGSS covered

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Covalent bond is equal sharing of electron. Polar covelent bond is

unequal sharing of electrons

different distribution of electrons

presence of hydrogen bonding

presence of polar atoms

Define electronegativity

ability to donate electron

tendency to lose electron

tendency to lose electron to its neighbor

tendency of atom to attract shared electron to itself

Polarity of a molecule is determined by

shape and charge

shape and difference in EN value

difference in EN value and size

difference in EN value and charges

MULTIPLE CHOICE QUESTION

1 min • 1 pt

H₂O is polar. Which statement is FALSE?

Dipole moment is formed

Partial separation of charges

Net dipole moment

Dipole moment cancel out each other

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

CCl₄ has polar bonds but is a non polar molecule. Why?

bond polarity exist between atoms

bond polarity between atoms cancel

dipole moment exist between atoms in molecule

difference in EN between C and Cl

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

HCCl₃ is a polar molecule with polar bonds. Why?

it has an asymmetrical shape

bond polarity between atoms cancel

net dipole moment exist between atoms in molecule

difference in EN between C and Cl

MULTIPLE CHOICE QUESTION

1 min • 1 pt

CO₂ has polar bonds but is a NON POLAR molecule. Why?

it has an asymmetrical shape

bond polarity between C and O atoms cancel

net dipole moment exist between atoms in molecule

bond polarity exist between C⁺ and O^-

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Polarity IMFs

Covalent bond is equal sharing of electron. Polar covelent bond is

Define electronegativity

Polarity of a molecule is determined by

H2O is polar. Which statement is FALSE?

CCl4 has polar bonds but is a non polar molecule. Why?

HCCl3 is a polar molecule with polar bonds. Why?

CO2 has polar bonds but is a NON POLAR molecule. Why?

Which of the following is FALSE about intermolecular forces between molecules?

Factors affecting the strength of VDF and boiling point are

The following statement is true for hydrogen bonding EXCEPT

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H₂O is polar. Which statement is FALSE?

CCl₄ has polar bonds but is a non polar molecule. Why?

HCCl₃ is a polar molecule with polar bonds. Why?

CO₂ has polar bonds but is a NON POLAR molecule. Why?