Question

Burning of Magnesium ribbon is a _______

• A. Chemical change
• B. Physical change
• C. Reversible change
• D. None of the above

Answer 1

The correct option is A Chemical change

Magnesium ribbon burns with dazzling light in air and forms magnesium oxide.
$2Mg+O_2\to 2MgO$.
The above change is a chemical changes as new substance is formed after change. Original
substances cannot be retrieved by simple physical processes.So it is chemical change.
Hence option A is correct.