Question

Oxidation state shown by group 13 elements is
1) +1 and +3 2) +1, +2 and +3 3) +2, +3 and +4
4) +1 and +4​

Answer 1

Answer:

1)+1 and +3

general oxidation number of group 13 is 3

but Thalium most stable in 1 oxidation state