WorksheetsIntermolecular Forces
Total questions: 10
Worksheet time: 5mins
Which of the following compounds has the highest boiling point?
H2O
NH3
H2S
CH4
Which of the following indicates the presence of hydrogen bonds?
The vaporization rate of CH3COCH3 is higher than vaporization rate of CH3CH2CHO.
The boiling point of H2O is higher than boiling point of H2S.
The relative molecular mass of AlCl3 is twice in solid state than in vapour state.
The melting point of iodine is higher than melting point of bromine.
Which of the following compound has the weakest van der Waals forces?
AlF3
XeF4
CCl4
H2
Which of the followings explains why CO2 is a gas whereas SiO2 is a solid at room temperature
Molar mass CO2 is lower than SiO2
CO2 has weak van der Waals forces whereas SiO2 has a strong covalent bond.
C-O bond is more polar than Si-O bond
CO2 is a simple covalent structure whereas SiO2 is a giant covalent structure.
Which of the following compounds consist of molecules held together by dipole-dipole forces?
CH4
CO2
CCl4
COCl2
Which of the following compounds is insoluble in water?
CH3CH2CH3
CH3OH
CH3NH2
CH3COOH
Ethanol CH3CH2OH readily dissolves in water however heptanol, CH3CH2CH2CH2CH2CH2OH insoluble in water. This is because ________________________________________
heptanol contains large hydrophobic part.
heptanol contains no polar bond.
heptanol is a large molecule.
heptanol has zero dipole moment.
The boiling point of the halogens increases in the order Cl2 < Br2 < I2 . Which property influence the trend?
Covalent bond strength increase
The length of bond increase
The electronegativity decrease
The molecular size increase
Why melting point of diamond is extremely high?
Strong covalent bond
Strong hydrogen bond
Strong ionic bond
Strong dipole-dipole force.
Which of the following gases readily liquefied?
N2
O2
H2
Br2
