Which one of the following elements of group 13 can react with an alkali to give H2 gas?
Do all metals react with bases to give H2 or all metals react to give H2?
Based on the group valency of elements state the formula for the following giving justification for each:
(i) Oxides of 1st group elements.
(ii) Halides of the elements of group 13.
(iii) Compounds formed when an element of group 2 combines with an element of group 16.