Question

Arrange the following subtances in increasing order of forces of attraction between particles- Petrol , Potassium Permanganate , Oxygen​

Answer 1

Answer: Oxygen < Petrol <Potassium Permanganate

Explanation:

Petrol is liquid

KMnO4 is solid

Oxygen is gas

Answer 2

The following substances in increasing order of forces of attraction between particles are arranged as follows -

Oxygen < Petrol < Potassium Permanganate

To solve this question, we need to know about the force of attraction in different states of matter.

Intermolecular force in different states of matter:

• Intermolecular force is the force of attraction between the molecules of a substance.
• Gases have very negligible intermolecular force. This is why they are able to move around freely and randomly and occupies the entire space. Consequently, gases have no fixed volume or shape.
• Liquids have greater intermolecular force as compared to gases, but it is less than solids. Molecules in liquids take up the shape of the container proving they have no fixed shape, but they have fixed volume.
• Solids have the maximum intermolecular force. This is because molecules in solids are closely packed together. The strong intermolecular force in solids provides them with a fixed volume as well as a fixed shape.

Force of attraction in the given substances-

1. Oxygen is a gas hence it has the least intermolecular force.
2. Petrol being liquid, has more intermolecular force than oxygen.
3. Potassium Permanente is solid with maximum intermolecular force.