Determine the oxidation number of the atom in bold in the following species : BH_3,BF_3,BrO_4^(-) , HPO_4^(2-),S_2O_3^(2-),SiH_4

Determine the oxidation number of the atom in bold in the following sp

1.	Determine the oxidation number of the atom in bold in the following species : BH_3,BF_3,BrO_4^(-) , HPO_4^(2-),S_2O_3^(2-),SiH_4
Answer» Answer :`-3,+3,+7,+5,+2,-4`