Question

What type of force?

1.Ions absent
2.Polar
3.H-Bonding

A) Ionic forces
B) Dipole-dipole forces
C) London dispersion forces
D) Hydrogen bonding

Answer 1

The question addresses different scenarios for types of intermolecular forces. London dispersion forces are present when ions are absent, while polar molecules exhibit dipole-dipole forces. When hydrogen bonds with F, O, or N, hydrogen bonding occurs as the intermolecular force.

Step-by-step explanation:

The question is asking about the type of intermolecular force present based on different scenarios:

1. With ions absent,
2. In a polar molecule, and
3. When there is hydrogen bonding.

Intermolecular forces are the forces that mediate interaction between molecules, including attraction or repulsion. These can be classified into several types:

• London dispersion forces occur in all molecular interactions and are due to temporary dipoles caused by an uneven distribution of electrons.
• Dipole-dipole forces are stronger than London dispersion forces and occur when there are permanent dipoles in polar molecules.
• Hydrogen bonding is a special case of dipole-dipole interaction that occurs when hydrogen is bonded to highly electronegative atoms like fluorine, oxygen, or nitrogen, leading to very strong intermolecular attractions.
• Ionic forces occur between positively and negatively charged ions.

Based on the given scenarios:

1. With ions absent, the force would be the London dispersion forces.
2. In a polar molecule, the force is likely the dipole-dipole forces.
3. When there is hydrogen bonding, the force specifically is hydrogen bonding.