GK
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
i only
|
|
|
i and ii only
|
|
|
i and iii only
|
|
|
i, ii and iii
|
Detailed explanation-1: -Primary and secondary amines undergo intermolecular hydrogen bonding due to the presence of two and one hydrogen atoms bonded to the nitrogen atom in the amino group respectively.
Detailed explanation-2: -Van der Waals forces’ is a general term used to define the attraction of intermolecular forces between molecules. There are two kinds of Van der Waals forces: weak London Dispersion Forces and stronger dipole-dipole forces.
Detailed explanation-3: -Since hydrogen bonds involve interactions between permanent dipoles, they can be considered as a type of Van der Waals force (and would fall under the category of Keesom Interactions). However, hydrogen bonds are stronger than other types of Van der Waals forces (such as Debye forces and London dispersion forces).
Detailed explanation-4: -Answer and Explanation: The strongest intermolecular force present in dimethyl amine is hydrogen bonding.