Which of the following are matter? Chair, air, love, smell, hate, almonds, thought, cold, lemon water, smell of perfume.

Matter is anything that has mass and takes up space. Based on this definition, the items that are matter in the given list are: Chair, air, almonds, cold, lemon water, and smell of perfume. The rest (love, smell, hate, thought) are abstract concepts and do not have mass or occupy space in the same way that physical objects do.