Question

Burning something is a/an ___________ change.

• A. reversible
• B. irreversible
• C. temporary
• D. periodic

Answer 1

The correct option is B irreversible

Changes which can't be reversed are called irreversible changes.
Burning of a substance is an irreversible change. The properties of the material change after burning and it can not be brought back to its original state. For example, when a paper burns, it leaves ash in the end. We cannot obtain back the original paper from the ash.