Question

Which is not a physical change??
Cutting of paper
Folding of paper
Breaking a plate
Cooking meat

Answer 1

Cooking meat is not a physical change; it is a chemical change. During cooking, the chemical composition of the meat is altered due to heat, resulting in changes in flavor, texture, and appearance. In contrast, cutting, folding, and breaking paper are all physical changes, which do not alter the chemical composition of the material.