The sulphide used in coating electric fluorescent tubes is?

Question: The sulphide used in coating electric fluorescent tubes is?

The sulphide used in coating electric fluorescent tubes is typically a phosphor compound, rather than a sulphide compound. 

Fluorescent tubes work by passing an electric current through a gas, typically a mixture of argon and mercury vapor, which produces ultraviolet (UV) light. This UV light is then absorbed by a phosphor coating on the inside of the tube, which emits visible light.

The phosphor coating is typically a mixture of various compounds, including some that contain sulphur. However, the primary component of the phosphor coating is usually a rare earth element, such as europium or terbium, which gives the fluorescent tube its characteristic color.

So, to answer your question, the sulphide used in coating electric fluorescent tubes is not a specific compound, but rather a component of the phosphor coating that is used to convert UV light into visible light.

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