Pepper is classified as a mixture.
Explanation: When we think about pepper, especially black pepper, we consider it to be a combination of various compounds. Specifically, black pepper contains multiple chemical substances, including piperine, which gives it its characteristic flavor, as well as other essential oils and various other compounds. Unlike an element, which consists of only one type of atom, or a compound, which consists of two or more elements chemically bonded together, a mixture contains two or more substances that are physically combined but not chemically bonded. Therefore, when you grind black pepper, you are simply blending these various components together, making it a mixture.