Assign oxidation number to the underlined elements in each of the following species : KAl(ul(S)O_(4))_(2).12H_(2)O

Assign oxidation number to the underlined elements in each of the foll

1.	Assign oxidation number to the underlined elements in each of the following species : KAl(ul(S)O_(4))_(2).12H_(2)O
Answer» Solution :`overset(+1)(A)overset(+3)(Al)overset(X-2)((SO_(4))_(2)).12overset(+1-2)(H_(2)O)` `(+1)+(+3)+[(x)+(-2)xx4]xx2+[(+1)xx2+(-2)]xx12=0` or `+4+2x-16+24-24=0` or `2x=+16-4+12` or x=+6 `:.` The oxidation NUMBER of S in `KAI(SO_(4))_(2).12H_(2)O` is +6.