GENERAL KNOWLEDGE

Detailed explanation-1: -The formation of a solution from a solute and a solvent is a physical process, not a chemical one. Substances that are miscible, such as gases, form a single phase in all proportions when mixed. Substances that form separate phases are immiscible.

Detailed explanation-2: -Physical change occurs when substances mix and either form a solution, a colloidal suspension or a mixture. The only difference between each is the size of the particles in the mixture. Solutions like salt water are mixtures on the atomic or molecular scale.

Detailed explanation-3: -Answer: Solution: Change in state of matter is a physical change because of the physical condition and appearance changes but not the chemical composition.

Detailed explanation-4: -The change of matter which occurs without changing its chemical composition is called a physical change. The physical change only affects the physical properties of the matter i.e size, shape, volume, density, state or colour. No new products are formed during the physical change of a matter.

Detailed explanation-5: -Separating Mixtures Through Physical Changes Homogeneous mixtures (solutions) can be separated into their component substances by physical processes that rely on differences in some physical property, such as differences in their boiling points. Two of these separation methods are distillation and crystallization.