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Intermolecular forces

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Question#1

Which type of forces exist between iodine molecules? MDCAT2023

Dipole dipole forces

Dipole induce dipole forces.

Instantaneous dipole and induce dipole forces

Non-polar forces

Please select an option

Question#2

In liquids with change in intermolecular forces there is change in some physical properties. Select the property which is not effected by strength of dipole dipole forces? MDCAT2022

Boiling Point

Heat of vaporization

Heat of sublimation

moles

Please select an option

Solution:

IMF $\propto$ Boiling point/Melting point

IMF $\propto$ $Δ$ H_vap

IMF $\propto$ $Δ$ Hf

IMF $\propto$ $Δ$ Hsub

IMF $\propto$ Surface Tension

IMF $\propto \frac{1}{V a p o r P r e s s u r e}$

Question#3

The heat of vaporization of liquid A, B and C are 60, 30 and 40 recall/mule respectively the order of decreasing intermolecular forces among their molecules is ETEA2016-158

A>B>C

C>B>A

A>C>B

B>C>A

Please select an option

Solution:

IMF $\propto$ Boiling point/Melting point

IMF $\propto$ $Δ$ H_vap

IMF $\propto$ $Δ$ Hf

IMF $\propto$ $Δ$ Hsub

IMF $\propto$ Surface Tension

IMF $\propto \frac{1}{V a p o r P r e s s u r e}$

Question#4

CO₂and SO₂both are diatomic molecules but heat of vaporization but heat of vaporization of SO₂ is greater than that of CO₂due to MDCAT2020

High electronegativity of S

Greater Size of SO₂

SO₂ is polar and CO₂ is non-polar

SO₂is more acidic than CO₂

Please select an option

Solution:

Strength of IMF $\propto$ $Δ$ H_vap $\propto$ Polarizability $\propto$ M.W

Question#5

Boiling point of water is higher than petrol, because intermolecular forces in water are. MDCAT2011

Weaker than petrol

Stronger than petrol

Same as in petrol

Negligible

Please select an option

Solution:

Strength of IMF $\propto$ Boiling point

Question#6

What type of forces are present in gasoline MDCAT2010

Dipole Dipole forces

Hydrogen Bonding

Dipole induce Dipole forces

London dispersion forces

Please select an option

Question#7

Atomic size of Xenon is larger than Neon. Considering the London forces which one of following is true ETEA-2016

Neon molecule have weaker London Dispersion forces

Xenon molecule have weaker London forces

Xenon and Neon have almost same London dispersion forces

Xenon have lower boiling point than neon

Please select an option

Question#8

The type of intermolecular forces present in solid mercury. ETEA-2008 med

Covalent bond

Ionic bond

Metallic bond

H-bonds

Please select an option

Question#9

London forces are present in: ETEA-2008-Q185 Med

Gases only

liquids only

solids only

All of the above

Please select an option

Question#10

What is true about London forces ETEA-2012 Q#115 Med

London forces are present in non-polar molecules

London forces are present in polar molecules

London forces are created between instantaneous dipole and induce dipole

All of the above

Please select an option

Question#11

What type of intermolecular attractive forces present in CO₂ ETEA-2008 Q#64 MED

Hydrogen bonding

Dipole Dipole forces

London forces

Covalent bonding

Please select an option

Question#12

London forces are the only forces present among the MDCAT2016

Molecules of H₂0 in liquid state.

Molecules of HCl gas

Atoms of Helium in a gaseous state at high temprature

Molecules of solid chlorine

Please select an option

Related MCQ's Catrgories

Intermolecular forces

hydrogen Bonding

Evaporation

Vapor Pressure

Boiling point and External pressure

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Intermolecular forces