Question

Making of omelette from egg is a/an _____ change.

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

Answer 1

The correct option is B irreversible

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Changes which can't be reversed are called irreversible changes.
When we cook an omelette, the raw egg gets converted into a semi-solid substance which has different chemical properties. We cannot get the raw egg back from the omelette. Hence, it is an irreversible change.