Question

Bones glow in the dark because :

• A. they contain shining material.
• B. they contain red phosphorus.
• C. white phosphorus undergoes slow combustion in contact with air.
• D. white phosphorus changes into red form.

Answer 1

The correct option is C white phosphorus undergoes slow combustion in contact with air.

Bones are made of calcium and phosphorous. white phosphorous is an element which reacts with atmospheric oxygen and forms fumes like substance and glows in dark. this phenomenon is called as phosphorescence.