Identifying the Incorrect Statement About Matter

The question asks us to identify the statement that is not correct regarding matter. Let's analyze each statement based on our understanding of the properties of matter and its constituent particles.

Analysis of Each Statement

• Statement 1: Matter is made up of particles.

  This statement is a fundamental concept in chemistry and physics. All matter, whether solid, liquid, or gas, is composed of tiny particles (atoms, molecules, or ions). This is a correct statement about matter.

• Statement 2: There is a difference between particles of matter.

  This statement is also generally correct. Particles of different substances are different. For example, a particle of water is different from a particle of oxygen. Even within the same type of matter, like a sample of copper, while the atoms are identical, their energy states or positions can differ. However, the most common interpretation is that particles of different substances vary. This is a correct concept when comparing different types of matter.

• Statement 3: There is no attraction force between particles of matter.

  This statement is incorrect. Particles of matter are constantly subject to attractive forces, often referred to as intermolecular forces (or interatomic forces). These forces are what hold particles together in solids and liquids and influence the behavior of gases. The strength of these attraction forces varies depending on the state of matter and the type of particles, but they are always present.

• Statement 4: The particles of matter move continuously in fluid and air.

  This statement aligns with the kinetic theory of matter. Particles in fluids (liquids and gases) are in constant, random motion. This movement is most pronounced in gases (air) where particles move freely and rapidly, and is also significant in liquids where particles slide past each other. This continuous motion is a key property of matter in these states and is a correct statement.

Based on the analysis, Statement 3, which claims there is no attraction force between particles of matter, is the statement that is not correct.

Conclusion on Matter Properties

Understanding the fundamental properties of matter is crucial. Matter is particulate in nature, particles of different substances are distinct, and critically, there are forces of attraction acting between these particles. Particles also exhibit motion, which is more evident in fluids.

Therefore, the statement that is incorrect regarding matter is the one claiming there is no attraction force between particles.

Revision Table: Properties of Matter

Additional Information on Particle Forces and Motion

The attractive forces between particles are responsible for many observed properties of matter, such as boiling point, melting point, and surface tension. Stronger forces require more energy to overcome, leading to higher boiling and melting points.

The continuous motion of particles is described by the kinetic theory of matter. The average kinetic energy of particles is directly proportional to the temperature. This motion is most vigorous in gases, leading to their diffusion and expansion to fill any container.

In solids, particles are held in fixed positions and mostly vibrate. In liquids, particles are close together but can move past each other. In gases, particles are far apart and move randomly at high speeds.