Indicate the oxidation state of the specified atom in each of the following subs
ID: 1004100 • Letter: I
Question
Indicate the oxidation state of the specified atom in each of the following substances. Use the link Oxidation State Rules below. The input format is +# or -#, with # as the integer value of the charge (1,2,etc). Oxidation State Rules 1. The oxidation states of the atoms in an element are all zero. 2. Fluorine is always assigned an oxidation number of -1. 3. Group 1A metals are +1, Group 2A metals are +2, and aluminium is +3. 4. H is +1 when bonded to non-metals. H is 1 when bonded to metals. 5. Oxygen is assigned an oxidation number of 2. 6. Group 7A atoms are assigned an oxidation number of -1. substance atom oxidation state
(Substance, Atom)
S8, S
SiCl4, Si
Ag2S, S
ClO31, Cl
Explanation / Answer
1) S8 = Since S8 is in elemental form OS = 0.
2) SiCl4 = Si + ( - 4) = 0 [ for one Cl = -1 therefore for four Cl atoms OS = -4 ]
= Si = +4
3)Ag2S = Ag = +1 Threfore 2Ag = +2
= (+2) + S = 0
S = -2
4 ) ClO3
Cl = -1
3O = -2 x 3 = -6
( -1 ) + ( -6 ) = 0
( -1 ) = +6
Therefore Cl = +5