Q. The liquefied metal expanding on solidification is :

 2374  211 AIIMSAIIMS 2004The p-Block Elements Report Error

Solution:

Gallium (At. no. ) is soft, silvery metal placed in IIIA group in periodic table. Its melting point is . This metal expands by when it solidifies and hence, should not be stored in glass or metal containers. Gallium also corrode other metals.