Task: Text Categorization
Input (English): Question: Gallium is the element that is under the aluminum in group 13 of the periodic table. Thus: 
 Options:  <0> It burns in oxygen giving Ga2O. <1> It is stable to air due to a protective oxide layer. <2> It dissolves very quickly in nitric acid. <3> It is not soluble in basic water with hydrogen evolution. <4> It has a melting point a little higher than aluminum.
Output (English): chemistry