Which type of change is referred to as a permanent change?

Any change happening around us can be divided into two categories: Physical change and chemical change. 

During physical changes, only the physical state or appearance of the substance changes without actually changing the chemical composition of the substance. The physical changes are usually reversible. For example- The conversion of ice into water and water into steam

Chemical changes are also referred to as permanent changes as in chemical changes, starting material or reactants get converted into products or compounds with new properties. This type of reaction is irreversible in nature. Hence, considered a permanent change.

Hence, the correct option is (B).