Question

Rank the compounds in each group in order of increasing strength of intermolecular forces: a. CH3NH2,...

Rank the compounds in each group in order of increasing strength of intermolecular forces:

a. CH3NH2, CH3CH3, CH3Cl

b. CH3Br, CH3OH, CH3Li

c. Hex-3-yne, butyric acid, tert-butyl methyl ether

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Answer #1

a) The order of strength of intermolecular forces is: CH3CH3 < CH3Cl < CH3NH2

Explanation: amines have hydrogen bonding due to the presence of hydrogen atom on nitrogen atom which is very strong intermolecular forces

b) the order is: CH3Li < CH3Br < CH3OH

Explanation: alcohols have hydrogen bonding which is very strong intermolecular forces.

c) The order is: Hex-3-yne < tert-butyl methyl ether < butyric acid

Explanation: Carboxylic acids have hydrogen bonding so they have strong intermolecular forces.

Hydrogen bonding is formed by compounds having hydrogen atom attached to more electronegative oxygen, nitrogen,fluorine atoms.

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