GENERAL KNOWLEDGE

Detailed explanation-1: -A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.

Detailed explanation-2: -A chemical property is a characteristic of a particular substance that can be observed in a chemical reaction. Some major chemical properties include flammability, toxicity, heat of combustion, pH value, rate of radioactive decay, and chemical stability.

Detailed explanation-3: -Density is not a chemical property. It is a physical property. Electromotive force, Flammability and pH are chemical properties.

Detailed explanation-4: -Chemical properties are those properties that cannot be observed without changing matter to a new substance. Flammability and reactivity would be two examples of chemical properties.

Detailed explanation-5: -In a chemical change the properties of the new substances are different from the original, the particles are different and the number of particles can change.