The following are examples of physical properties of matter, exceptQuestion 10Select one:a.Melting pointb.Colourc.Chemical reactivityd.Density

To answer the question, we need to identify the physical properties of matter. The options given are melting point, color, chemical reactivity, and density. We are asked to select the option that is not a physical property of matter.

Step 1: Let's examine each option:

a. Melting point: This is a physical property of matter as it refers to the temperature at which a substance changes from a solid to a liquid state.

b. Color: This is also a physical property of matter as it refers to the visual appearance of a substance.

c. Chemical reactivity: This is not a physical property of matter. Chemical reactivity refers to how a substance reacts with other substances, indicating its ability to undergo chemical changes.

d. Density: This is a physical property of matter as it refers to the mass of a substance per unit volume.

Step 2: Comparing the options, we can see that the correct answer is c. Chemical reactivity, as it is not a physical property of matter.

Therefore, the correct answer is c. Chemical reactivity.