MCQ Detailed View

Matter is anything that has mass and occupies space. It is made up of tiny particles called atoms and molecules, and it can exist in different forms based on the arrangement and movement of these particles. Traditionally, matter is said to exist in three basic states: solid, liquid, and gas.

In the solid state, the particles are closely packed together and held by strong intermolecular forces. This gives solids a definite shape and definite volume. Examples include wood, stone, and metal.

In the liquid state, particles are close to each other but not in fixed positions. They can move around freely, which allows liquids to flow. Liquids have a definite volume but no definite shape, as they take the shape of their container. Examples include water, oil, and milk.

In the gaseous state, particles are far apart and move randomly at high speeds. The intermolecular forces are very weak, so gases have neither a definite shape nor a definite volume. Instead, they expand to fill all the available space. Examples include oxygen, nitrogen, and carbon dioxide.

Although modern science has discovered more states of matter like plasma and Bose–Einstein condensate, in basic physics and everyday science, matter is usually described as existing in three classical states: solid, liquid, and gas. These three are most commonly observed in daily life and are fundamental for understanding the behavior of matter.

Thus, the correct answer is Three, because the traditional and widely accepted classification of matter is into three states: solid, liquid, and gas. This knowledge forms the foundation of many concepts in physics, chemistry, and general science.