Question

Is the given material comes under the category of "pure substance" or not? - wood.

Answer 1

Wood is not a pure substance it is a mixture

Answer 2

◆ Answer -

No. Wood is not a pure substance.

● Explanation -

• Material of wood doesn't have fixed chemical composition.
• Also it's properties are not constant.
• Hence, wood is not a pure substance.

● Pure substance -

• Pure substance is a substance having constant chemical composition and characteristic properties.
• They are formed by single type of entity (atom or molecule or compound).
• For example, ice, iron, calcium oxide, water, table salt, mercury, hydrogen chloride, silver, aluminum hydroxide, etc.