Question

Gallium at room temperature is in :

• A. plasma state
• B. liquid state
• C. solid state
• D. gaseous state

Answer 1

The correct option is B liquid state

Gallium melts at room temperature and has one of the largest liquid ranges of any metal. The melting point of gallium is used as a temperature reference point. At room temperature, gallium metal is unreactive towards air and water due to formation of a passive protective oxide layer. It melts at ${29.76}^{\circ }C$ (slightly above the room temperature). It is used as an agent to make alloys and is also useful in semicounductors.