Question

The liquid field metal expanding on solidification
$[Ga$ is soft silvery white metal and is liquid at room temperature. When it solidifies, it expands by $3.1$ per cent. Therefore, it should not be stored in glass or metal containers.$]$

• A. $Ga$
• B. $Al$
• C. $Zn$
• D. $Ca$

Answer 1

The correct option is A $Ga$

Gallium expands by 3.1% when it solidifies, and therefore so it is stored in either glass or metal containers is avoided, due to the possibility of container rupture with freezing. Gallium shares the higher-density liquid state with only a few materials like silicon, germanium, bismuth, and water. So the liquid field metal expands on solidification is $Ga$.

Hence option $A$ is correct.