The sulphide that is commonly used in coating electric fluorescent tubes is?

  • A iron(ii)Sulphide
  • B tin(ii)sulphide
  • C Zinc Sulphide
  • D lead(iv) Sulphide

The correct answer is C. Zinc Sulphide

ZnS (Zinc Sulfide) screen was used because it emits a flash of light when struck by an alpha particle.

This is a phenomenon called Radio luminescence in which a flash of light is observed on the screen when acted upon by a radioactive substance.

Previous question Next question